html {
  box-sizing: border-box;
}

*,
*:after,
*:before {
  box-sizing: inherit;
}

body {
  padding-top: 30px;
  background-color: #2A2A2A;
}

.container {
  display: table;
  margin: 5em auto;
}

.demo-top-bar {
  font-family: tahoma;
  direction: rtl;
  background-color: #333;
  position: fixed;
  z-index: 1000;
  top: 0;
  left: 0;
  right: 0;
}

.demo-top-bar a {
  display: inline-block;
  font-size: .8em;
  padding: .5em 1em;
  color: #eee;
  text-decoration: none;
  transition: all .2s;
}

.demo-top-bar a i {
  font-size: 1.4em;
}

.demo-top-bar a:hover {
  background-color: #555;
  color: #fff;
}