digital-theory/css/0-1-nav.css

main nav {
  padding: 24px;
  font-style: normal;
  font-weight: 400;
  font-size: 24px;
  line-height: 130%;
  text-align: center;
  color: #FFFDFC;
  width: 100%;
  position: fixed;
  top: 0;
}

.burger-menu {
  width: 150px;
  float: left;
}
.icon-burger{
  cursor: pointer;
  width: 40px;
  height: 1em;
  float: left;
  margin-top: 0.3rem;
}
.icon-burger .line{
  border-top: 2px solid #fff;
  margin-bottom: 6px;
  display: block;
}

.nav-main {
  text-align: center;
  top: 54px;
  color: #FFFDFC;
  width: 100%;
  height: 54px;
}

.fixed-nav{
  z-index: 30;
}