diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/add-different-padding-to-each-side-of-an-element.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/add-different-padding-to-each-side-of-an-element.english.md
index a3703e706a..0e20c80822 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/add-different-padding-to-each-side-of-an-element.english.md
+++ b/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;
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/adjust-the-padding-of-an-element.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/adjust-the-padding-of-an-element.english.md
index e2542f2ade..f73d596ec5 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/adjust-the-padding-of-an-element.english.md
+++ b/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;
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.english.md
index 7fd32456de..60366221fb 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/change-the-font-size-of-an-element.english.md
+++ b/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>
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.english.md
index bac85f8740..6025045d58 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/give-a-background-color-to-a-div-element.english.md
+++ b/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>
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/import-a-google-font.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/import-a-google-font.english.md
index ad755512bd..ca2a2772ca 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/import-a-google-font.english.md
+++ b/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>
diff --git a/curriculum/challenges/english/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.english.md b/curriculum/challenges/english/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.english.md
index f70ddd442c..737ac160d4 100644
--- a/curriculum/challenges/english/01-responsive-web-design/basic-css/make-circular-images-with-a-border-radius.english.md
+++ b/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>
diff --git a/docs/how-to-work-on-coding-challenges.md b/docs/how-to-work-on-coding-challenges.md
index fb07b80a31..b71b433dd5 100644
--- a/docs/how-to-work-on-coding-challenges.md
+++ b/docs/how-to-work-on-coding-challenges.md
@@ -15,7 +15,7 @@ Creating these challenges requires immense creativity and attention to detail. B
 
 With your help, we can design an interactive coding curriculum that will help millions of people learn to code for years to come.
 
-The content for each challenge is stored in its own markdown file. This markdown file is later coverted using our tools, to webpage that you can interact with. You can find all of freeCodeCamp.org's curricular content in the [`/curriculum`](/curriculum) directory.
+The content for each challenge is stored in its own markdown file. This markdown file is later converted using our tools, to webpage that you can interact with. You can find all of freeCodeCamp.org's curricular content in the [`/curriculum`](/curriculum) directory.
 
 There are two ways you can work on these challenges:
 
@@ -321,7 +321,7 @@ Before you [create a pull request](how-to-open-a-pull-request.md) for your chang
 ```
 npm run test -- -g 'the full English title of the challenge'
 ```
-    
+
 Once you have verified that each challenge you've worked on passes the tests, please create a pull request.
 
 ### Useful Links