Extensions Docs Server: Support APIs with properties

chrome/common/extensions/docs/server2/static/css/site.css

 body {
   color: #333;
   font: 13px/22px 'Open Sans',arial,sans-serif;
   font-weight: 400;
   background-color: white;
   margin: 0;
   padding: 0;
 }
 
 p {
   margin: 1em 0 0 0;
   color: #767676;
   font-size: 14px;
 }
 
 p.note,
 p.caution,
 p.warning {
   margin: 1em 0 0 0;
   padding: .2em .5em .2em .9em;
   background-color: #EFEFEF;
   border-top: 1px solid;
   border-bottom: 1px solid;
 }
 
 p.note {
   border-color: #36C;
 }
 
+p.caution {
+  border-color: #FC3;
+}
+
+p.warning {
+  border-color: #A03;
+}
+
 a, a:link {
   text-decoration: none;
   color: black;
   font-weight: 600;
 }
 
 a:visited {
   color: #61C;
 }
 
@@ skipping 310 matching lines @@
   z-index: 1;
   position: relative;
 }
 
 #gc-toc div.line {
   border-top: thin solid #FAFAFA;
   height: 1px;
   margin: 1.3em 1em 0 0;
   padding: 0;
 }