Begin work on input/output standardization

_sass/modules/_base.scss

@@ -64,7 +64,7 @@ li {
 /** Headings */
 
 h1, h2, h3, h4, h5, h6 {
-  font-weight: 300;
+  font-weight: bold;
 }
 
 /** Links */
@@ -87,6 +87,7 @@ h1 {
 
 h2 {
   font-size: 1.5em;
+  text-decoration: underline;
 }
 
 h3 {

_sass/modules/_content-area.scss

@@ -1,23 +1,9 @@
 .content__item {
   margin-bottom: $spacing-unit * 2;
-
-  h3 {
-    text-decoration: underline;
-  }
 }
 
-.content__list {
-
-  h1 {
-    font-weight: bold;
-  }
-
-  h2 {
-    font-weight: bold;
-    text-decoration: underline;
-
-    &:not(:first-child) {
-      margin-top: $spacing-unit * 2;
-    }
+.code--input {
+  &:before {
+    content: 'stuff'
   }
 }