corrections

static/css/labs.css

@@ -9,10 +9,9 @@ BODY {
 code {
   font-size: 1.6rem;
   background-color: #f9f2f4;
-  
 }
 
-p, li, .table {
+p, li, ul, .table {
   margin: 0 0;
   line-height: 3.5rem;
 }
@@ -27,26 +26,28 @@ h1, h2, h3, h4, h5, h6 {
   text-rendering: optimizeLegibility;
   letter-spacing: 0;
   margin: 0 0;
- 
 }
 
 h2 {
   font-size: 2.45rem;
   padding: 3rem 0rem;
+
 }
 
 h3 {
   font-size: 2.15rem;
-
+  padding: 2rem 0rem;
 }
 
 h4 {
   font-size: 1.85rem;
+  padding: 1.3rem 0rem;
 }
 
 img{
   max-width: 100%;
   height: auto;
+  padding: 1.5rem 0rem;
 }
 
 video {
@@ -59,7 +60,6 @@ pre {
   line-height: 1.7rem;
   margin-top: 1rem;
   margin-bottom: 1rem;
-
 }
 
 .input-group {
@@ -139,6 +139,7 @@ a:hover {
   font-size: 1.25rem;
   line-height: 1.55;
   width: 32.5rem;
+  margin: 0 0;
 }
 
 .sidebar.active {
@@ -152,7 +153,6 @@ a:hover {
   color: #ccc;
 }
 
-
 .sidebar-header a {
   color: #fff;
   font-size: 1.8rem;
@@ -172,6 +172,7 @@ a:hover {
 
 .sidebar li {
   line-height: 1.7rem;
+
 }
 
 .sidebar .sub-item > a{
@@ -193,7 +194,6 @@ a:hover {
   color: #fff;
   background-color: #ba3232;
   font-weight: bold;
-
 }
 
 .sidebar a:hover {
@@ -220,14 +220,17 @@ a:hover {
     display: block;
     top: 0rem;
   }
+
   .navbar a {
   font-size: 2rem;
   }
+
   .main {
     margin-left: 32rem;
     padding-right: 10rem; 
     padding-left: 10rem;
   }
+
   .navbar {
     display: none;
   }
@@ -238,10 +241,6 @@ a:hover {
   transition: width 2s;
   transition: height 2s;
   }
-
-  .zoom {
-      width: 100rem;
-  }
 }  
 
 .bs-callout {