Add figure styles

Change-Id: Ia29579bf5d2c54f59f6efb15d538307bdf75c6b1
diff --git a/static/main.css b/static/main.css
index baad1ba..bc3a992 100644
--- a/static/main.css
+++ b/static/main.css
@@ -17,54 +17,64 @@
 }
 
 h1 {
-	color: #00973A;
+    color: #00973A;
     margin-top: 20px;
-	font-size: 2em;
+    font-size: 2em;
 }
-	
+
 h2 {
-	color: #00973A;
-	font-size: 1.75em;
+    color: #00973A;
+    font-size: 1.75em;
     margin-top: 20px;
 }
 
 .tooltip-inner h1 {
-	color:inherit;
+    color: inherit;
     font-weight: bold;
     margin-top: 20px;
-	font-size: 1.2em;
+    font-size: 1.2em;
 }
-	
+
 .tooltip h2 {
-	color: inherit;
-	font-size: 1.15em;
+    color: inherit;
+    font-size: 1.15em;
     font-weight: bold;
 }
 
-.tooltip-inner
-{
+.tooltip-inner {
     max-width: 400px;
-    margin-bottom: 5em;;
+    margin-bottom: 5em;
+    ;
     text-align: left;
 }
 
-.tooltip-inner *
-{
+.tooltip-inner * {
     margin-left: 1em;
     margin-right: 1em;
 }
 
-.tooltip-inner body
-{
+.tooltip-inner body {
     padding-bottom: 1em;
-
 }
 
-.tooltip-inner ul
-{
+.tooltip-inner ul {
     list-style-type: disc;
     margin-left: 20px;
     padding-left: 20px;
     text-align: left;
 }
 
+.figure {
+    margin-top: 2em;
+    margin-bottom: 2em;
+}
+
+.figure-img {
+    text-align: center;
+}
+
+.figure-caption {
+    display: table-caption;
+    caption-side: bottom;
+    text-align: center;
+}
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