.stholder{
  position: absolute;
  z-index:180;
  text-align: center;
  width:60%;
  height:10%;
  color: white;
 	left:38%;
	top:30%;
}
.stbutton{
  margin-top: 2%;
  padding-top:0.5%; 
  float: left;
  position: relative;
  margin-left:5%;
  height:60%;
  min-width:18%;
 
  text-align: center;
  cursor: pointer;
}

.stbutton a{

	font-weight: bold;
	position:absolute; display:block;
  text-indent:5%;
	color:#ddd;
}
.ystbutton{
  background-color: #d00;
}
.tstbutton{
  background-color: #FF6501;
}
.astbutton{
  background-color: #66CC00;
}
.lstbutton{
  background-color: #0265CB;
}
.kstbutton{
  background-color: #A000D5;
}
.abtstbutton{
  background-color: black;
}