.tab_parent {
  position: fixed;
  right: 0;
  z-index: 99999;
  
	top: 30%; /* Отступ сверху */
  
}

.tab_buttons {
  display: block;
  position: absolute;
  right: 100%;
  top: 0;
  transform-origin: 100% 100%;
  transform: rotate(-90deg);
  -webkit-transform: rotate(-90deg);
  -moz-transform: rotate(-90deg);
  -ms-transform: rotate(-90deg); 
  -o-transform: rotate(-90deg);
  filter: progid:DXImageTransform.Microsoft.BasicImage(rotation=3);
  white-space: nowrap;
}

.tab_buttons span {
  display: inline-block;
  margin: 0 10px;
  padding: 10px;
  border-radius: 10px 10px 0 0;
  background:#f3542d;
}

.tab_buttons a {
	display: block;
	text-decoration: none;
	color: #fff;
	font-size: 1.1em;
}

.tab_buttons a:hover {
	text-decoration: none;
	color: #fff;
}