.btn-drk-01{
   float:left; 
  z-index: 10;
	margin: 0 10px 10px 0;
	width: 100px;
	height: 30px;
	line-height: 10px;
	/* position: relative; */
	font-size: 15px;
	letter-spacing: .1em;
	color: orange; /* #0e0e0e; */
	text-shadow: 0 3px 0 rgba(255,255,255,.1);
	font-weight: bold;
	background-image: linear-gradient(#888 5%,#555 10%,#222);
	border-radius: 7px;
  box-shadow: 3px 3px 7px #222, inset -4px -1px 5px #555;
}