diff --git a/seed/challenges/01-front-end-development-certification/html5-and-css.json b/seed/challenges/01-front-end-development-certification/html5-and-css.json
index 09b53fa8b0..32756426c8 100644
--- a/seed/challenges/01-front-end-development-certification/html5-and-css.json
+++ b/seed/challenges/01-front-end-development-certification/html5-and-css.json
@@ -2544,11 +2544,11 @@
         "",
         "  .yellow-box {",
         "    background-color: yellow;",
-        "    padding:10px;",
+        "    padding: 10px;",
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    padding: 20px;",
         "  }",
         "",
@@ -2612,11 +2612,11 @@
         "",
         "  .yellow-box {",
         "    background-color: yellow;",
-        "    padding:10px;",
+        "    padding: 10px;",
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    padding: 20px;",
         "    margin: 20px;",
         "  }",
@@ -2679,11 +2679,11 @@
         "",
         "  .yellow-box {",
         "    background-color: yellow;",
-        "    padding:10px;",
+        "    padding: 10px;",
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    padding: 20px;",
         "    margin: -15px;",
         "  }",
@@ -2744,11 +2744,11 @@
         "",
         "  .yellow-box {",
         "    background-color: yellow;",
-        "    padding:10px;",
+        "    padding: 10px;",
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    padding-top: 40px;",
         "    padding-right: 20px;",
         "    padding-bottom: 20px;",
@@ -2811,11 +2811,11 @@
         "",
         "  .yellow-box {",
         "    background-color: yellow;",
-        "    padding:10px;",
+        "    padding: 10px;",
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    margin-top: 40px;",
         "    margin-right: 20px;",
         "    margin-bottom: 20px;",
@@ -2882,7 +2882,7 @@
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    padding: 20px 40px 20px 40px;",
         "  }",
         "",
@@ -2949,7 +2949,7 @@
         "  }",
         "  ",
         "  .red-box {",
-        "    background-color:red;",
+        "    background-color: red;",
         "    margin: 20px 40px 20px 40px;",
         "  }",
         "",