Add some extra styling for images (#77)

Author: 17cupsofcoffee

sass/_extra.scss

@@ -61,30 +61,9 @@ h6:hover .anchor {
     visibility: visible;
 }
 
-.toc {
-    border: 1px solid #e0c33f;
-    background-color: #ffffea;
-    padding: 16px;
-    margin-bottom: 16px;
-
-    .toc-header {
-        font-size: inherit;
-        font-weight: bold;
-        margin-bottom: 8px;
-    }
-
-    ul {
-        margin: 0 32px;
-    }
-
-    li {
-        margin: 0;
-    }
-
-    @media (min-width: $on-large) {
-        float: right;
-        max-width: 256px;
-        margin-left: 32px;
-        margin-bottom: 32px;
-    }
-}
+.post-content p img {
+    display: block;
+    margin: 16px auto;
+    padding: 8px;
+    border: 1px solid #e8e8e8;
+}