.topnav {
  border-bottom: 1px solid #bbb;
}

.topnav a {
  color: #0083AC;
  padding: 6px 16px;
  background: #eee;
}

@media screen and (max-width: 600px) {
  .tab_site{
	border: none;
  }
  .icon_site{
	  border-bottom: solid 2px #eee;
  }
}

.round {
    border-radius: 0 0 0 0 !important;
    /*background-color: #0083AC !important;*/
}