diff --git a/challenges/01-front-end-development-certification/bootstrap.json b/challenges/01-front-end-development-certification/bootstrap.json
index 527bb4e895..33fbd2f9de 100644
--- a/challenges/01-front-end-development-certification/bootstrap.json
+++ b/challenges/01-front-end-development-certification/bootstrap.json
@@ -51,7 +51,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -150,7 +150,7 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -246,9 +246,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <p>Things cats love:</p>",
         "  <ul>",
         "    <li>cat nip</li>",
@@ -337,9 +337,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -436,9 +436,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <button class=\"btn\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -544,9 +544,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <button class=\"btn btn-block\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -638,9 +638,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <p>Things cats love:</p>",
         "  <ul>",
@@ -733,9 +733,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <button class=\"btn btn-block btn-info\">Info</button>",
         "  <p>Things cats love:</p>",
@@ -833,9 +833,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <button class=\"btn btn-block btn-primary\">Like</button>",
         "  <button class=\"btn btn-block btn-info\">Info</button>",
         "  <button class=\"btn btn-block btn-danger\">Delete</button>",
@@ -940,9 +940,9 @@
         "",
         "  <p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1041,9 +1041,9 @@
         "<div class=\"container-fluid\">",
         "  <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "",
-        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1145,9 +1145,9 @@
         "<div class=\"container-fluid\">",
         "  <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "",
-        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "  <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1259,10 +1259,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\">Like</button>",
@@ -1367,10 +1367,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1463,10 +1463,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1560,10 +1560,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1665,10 +1665,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
@@ -1778,10 +1778,10 @@
         "      <h2 class=\"text-primary text-center\">CatPhotoApp</h2>",
         "    </div>",
         "    <div class=\"col-xs-4\">",
-        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "      <a href=\"#\"><img class=\"img-responsive thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "    </div>",
         "  </div>",
-        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera. \">",
+        "  <img src=\"https://bit.ly/fcc-running-cats\" class=\"img-responsive\" alt=\"Three kittens running towards the camera.\">",
         "  <div class=\"row\">",
         "    <div class=\"col-xs-4\">",
         "      <button class=\"btn btn-block btn-primary\"><i class=\"fa fa-thumbs-up\"></i> Like</button>",
diff --git a/challenges/01-front-end-development-certification/html5-and-css.json b/challenges/01-front-end-development-certification/html5-and-css.json
index 226b9eb391..3670e9b3e6 100644
--- a/challenges/01-front-end-development-certification/html5-and-css.json
+++ b/challenges/01-front-end-development-certification/html5-and-css.json
@@ -1100,7 +1100,7 @@
         "<code>&#60img src=\"https://www.your-image-source.com/your-image.jpg\"&#62</code>",
         "All <code>img</code> elements <strong>must</strong> have an <code>alt</code> attribute. The text inside an <code>alt</code> attribute is used for screen readers to improve accessibility and is displayed if the image fails to load.",
         "Let's add an <code>alt</code> attribute to our <code>img</code> example above:",
-        "<code>&#60img src=\"https://www.your-image-source.com/your-image.jpg\" alt=\"Author standing on a beach with two thumbs up. \"&#62</code>",
+        "<code>&#60img src=\"https://www.your-image-source.com/your-image.jpg\" alt=\"Author standing on a beach with two thumbs up.\"&#62</code>",
         "Note that in most cases, <code>img</code> elements are self-closing.",
         "Try it with this image:",
         "<code>https://bit.ly/fcc-relaxing-cat</code>"
@@ -1210,7 +1210,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1300,7 +1300,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1403,7 +1403,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1486,7 +1486,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1569,7 +1569,7 @@
         "",
         "<h2 class=\"red-text\">CatPhotoApp</h2>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1671,7 +1671,7 @@
         "",
         "<a href=\"http://www.freecatphotoapp.com\">cat photos</a>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1775,7 +1775,7 @@
         "",
         "<p>Click here to view more <a href=\"http://www.freecatphotoapp.com\">cat photos</a>.</p>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1826,7 +1826,7 @@
       "description": [
         "You can make elements into links by nesting them within an <code>a</code> element.",
         "Nest your image within an <code>a</code> element. Here's an example:",
-        "<code>&#60;a href=\"#\"&#62;&#60;img src=\"https://bit.ly/fcc-running-cats\" alt=\"Three kittens running towards the camera. \"&#62;&#60;/a&#62;</code>",
+        "<code>&#60;a href=\"#\"&#62;&#60;img src=\"https://bit.ly/fcc-running-cats\" alt=\"Three kittens running towards the camera.\"&#62;&#60;/a&#62;</code>",
         "Remember to use <code>#</code> as your <code>a</code> element's <code>href</code> property in order to turn it into a dead link.",
         "Place the existing image element within an anchor element.",
         "Once you've done this, hover over your image with your cursor. Your cursor's normal pointer should become the link clicking pointer. The photo is now a link."
@@ -1863,7 +1863,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \">",
+        "<img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\">",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -1960,7 +1960,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back. \"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" src=\"https://bit.ly/fcc-relaxing-cat\" alt=\"A cute orange cat lying on its back.\"></a>",
         "",
         "<p class=\"red-text\">Kitty ipsum dolor sit amet, shed everywhere shed everywhere stretching attack your ankles chase the red dot, hairball run catnip eat the grass sniff.</p>",
         "<p class=\"red-text\">Purr jump eat the grass rip the couch scratched sunbathe, shed everywhere rip the couch sleep in the sink fluffy fur catnip scratched.</p>"
@@ -2066,7 +2066,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2180,7 +2180,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2288,7 +2288,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2391,7 +2391,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2494,7 +2494,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2601,7 +2601,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2711,7 +2711,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2835,7 +2835,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -2956,7 +2956,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -3067,7 +3067,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<p>Things cats love:</p>",
         "<ul>",
@@ -3184,7 +3184,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div>",
         "  <p>Things cats love:</p>",
@@ -3304,7 +3304,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div class=\"silver-background\">",
         "  <p>Things cats love:</p>",
@@ -3429,7 +3429,7 @@
         "",
         "<p>Click here for <a href=\"#\">cat photos</a>.</p>",
         "",
-        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back. \" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
+        "<a href=\"#\"><img class=\"smaller-image thick-green-border\" alt=\"A cute orange cat lying on its back.\" src=\"https://bit.ly/fcc-relaxing-cat\"></a>",
         "",
         "<div class=\"silver-background\">",
         "  <p>Things cats love:</p>",