/* here you can put your own css to customize and override the theme */
h4 {
  font-size: 14px;
}
.back-to-top {
 background:#999;
 color: #000;
 position: fixed;
 top:50%;
 right:20px;
 padding:1em;
}
.back-to-top i {
 font-size: 32px;
 font-weight:bold;
}