Tune styling for usable layout and content spacing

Author: jordanmccullough

_stylesheets/curriculum-beta.css

@@ -62,15 +62,24 @@ html, body {
   /* GitHub Links */
   /* GitHub Book Links, Guide Links */
   /* YouTube Links */ }
-  .curriculum h1, .curriculum h2, .curriculum h3, .curriculum h4, .curriculum h5, .curriculum h6, .curriculum p, .curriculum ul, .curriculum pre, .curriculum svg {
+  .curriculum > h1, .curriculum h2, .curriculum h3, .curriculum h4, .curriculum h5, .curriculum h6, .curriculum p, .curriculum ul, .curriculum pre, .curriculum svg {
     padding: 0 25%;
     margin: 0; }
+  .curriculum h4 {
+    line-height: 3em; }
+  .curriculum p {
+    line-height: 1.75em; }
+  .curriculum ul {
+    display: inline-block;
+    text-align: left; }
+  .curriculum svg, .curriculum iframe {
+    margin: 0 auto; }
   .curriculum .slide {
     min-height: 100%;
     width: 100%;
     background: #ffffff;
     display: table;
-    margin: 0 0 3em 0; }
+    text-align: center; }
     .curriculum .slide h1, .curriculum .slide h2, .curriculum .slide h3, .curriculum .slide h4, .curriculum .slide h5, .curriculum .slide h6, .curriculum .slide p, .curriculum .slide ul, .curriculum .slide pre {
       padding: 0;
       margin: 0; }

_stylesheets/curriculum-beta.scss

@@ -28,17 +28,32 @@ html, body{
   height: 100%;
   width: 100%;
 
-  h1,h2,h3,h4,h5,h6,p,ul,pre,svg{
+  & > h1,h2,h3,h4,h5,h6,p,ul,pre,svg{
     padding: 0 25%;
     margin: 0;
   }
 
+  h4{
+    line-height: 3em;
+  }
+
+  p{
+    line-height: 1.75em;
+  }
+  ul{
+    display: inline-block;
+    text-align: left;
+  }
+  svg,iframe{
+    margin: 0 auto;
+  }
+
   .slide{
     min-height: 100%;
     width: 100%;
     background: #ffffff;
     display: table;
-    margin: 0 0 3em 0;
+    text-align: center;
 
     h1,h2,h3,h4,h5,h6,p,ul,pre{
       padding: 0;