fix: removed trailing spaces, fixed a typo (#37572)

* removed trailing spaces, fixed a typo

* removed trailing spaces from basic-css challenges

curriculum/challenges/english/01-responsive-web-design/basic-css/add-different-padding-to-each-side-of-an-element.english.md

@@ -108,7 +108,7 @@ tests:
     background-color: yellow;
     padding: 10px;
   }
-  
+
   .red-box {
     background-color: crimson;
     color: #fff;

curriculum/challenges/english/01-responsive-web-design/basic-css/adjust-the-padding-of-an-element.english.md

@@ -104,7 +104,7 @@ tests:
     background-color: yellow;
     padding: 10px;
   }
-  
+
   .red-box {
     background-color: crimson;
     color: #fff;

curriculum/challenges/english/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.english.md

@@ -102,9 +102,9 @@ tests:
 <h2 class="red-text">CatPhotoApp</h2>
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
-  
+
   <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
-  
+
   <div>
     <p>Things cats love:</p>
     <ul>
@@ -119,7 +119,7 @@ tests:
       <li>other cats</li>
     </ol>
   </div>
-  
+
   <form action="/submit-cat-photo">
     <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
     <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>

curriculum/challenges/english/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.english.md

@@ -150,9 +150,9 @@ tests:
 <h2 class="red-text">CatPhotoApp</h2>
 <main>
   <p class="red-text">Click here to view more <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>
-  
+
   <div class="silver-background">
     <p>Things cats love:</p>
     <ul>
@@ -167,7 +167,7 @@ tests:
       <li>other cats</li>
     </ol>
   </div>
-  
+
   <form action="/submit-cat-photo">
     <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
     <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>

curriculum/challenges/english/01-responsive-web-design/basic-css/import-a-google-font.english.md

@@ -114,15 +114,15 @@ tests:
 
   h2 {
     font-family: Lobster;
-  }  
+  }
 </style>
 
 <h2 class="red-text">CatPhotoApp</h2>
 <main>
   <p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>
-  
+
   <a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
-  
+
   <div>
     <p>Things cats love:</p>
     <ul>
@@ -137,7 +137,7 @@ tests:
       <li>other cats</li>
     </ol>
   </div>
-  
+
   <form action="/submit-cat-photo">
     <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
     <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>

curriculum/challenges/english/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.english.md

@@ -137,9 +137,9 @@ tests:
 <h2 class="red-text">CatPhotoApp</h2>
 <main>
   <p class="red-text">Click here to view more <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>
-  
+
   <div>
     <p>Things cats love:</p>
     <ul>
@@ -154,7 +154,7 @@ tests:
       <li>other cats</li>
     </ol>
   </div>
-  
+
   <form action="/submit-cat-photo">
     <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
     <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>