update .expand CSS styles to be more noticeable
@import url('https://fonts.googleapis.com/css?family=Roboto:200,400,700');
+.expand {
+ background-color: #f1f1f1;
+ color: #444;
+ cursor: pointer;
+ padding: 18px;
+ width: 100%;
+ border: none;
+ text-align: left;
+ outline: none;
+ font-size: 15px;
+}
+
/* Table of contents */
.progress ul {
list-style: none;
