.sq_start {
position: absolute;
bottom: 10%;
left: 50%;
z-index: 3;
margin-left: -50px;
width: 100px;
height: 20px;
font-size: 18px;
background: -webkit-gradient(linear,left top,right top,color-stop(0, #549A66),color-stop(0.3, #3CAF5A),color-stop(0.5, white),color-stop(0.7, #3CAF5A),color-stop(1, #3CAF5A));
background-clip: text;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
text-fill-color: transparent;
-webkit-animation: slidetounlock 4s
linearinfinite;animation: slidetounlock 4s
linear infinite;
}