margin: 0;

  padding: 0;

  background:#EEE;

  overscroll-behavior: none;

  touch-action: manipulation;

}

canvas {

  display: block;

}

​

#wrapper{

​

position:fixed;

  top:0px;

  left:0px;

  width:80%;

  margin-left:10%;

  margin-top:10vh;

  height:80vh;

user-select: none;

  touch-action: manipulation;

}

​

​

.btn:hover{

background-color:#FFF;

color:#222;

  border-color:#444;

}

​

​

.btn:focus{

background-color:#FFF;

color:#111;

    border-color:#EEE;

}

​

.btn{

  touch-action: manipulation;

  user-select: none;

border:0px solid #FFF;

width:40px;

height:40px;

border-radius:20px;

background-color:#FFF;

​

  padding:0px;

   margin:6px;

  -webkit-box-shadow: 5px 5px 9px -2px rgba(0,0,0,0.37); 

box-shadow: 3px 3px 3px -2px rgba(0,0,0,0.27);

  font-size:11px;

  font-weight:600;

   color:#444;

  background:linear-gradient(to bottom, #ededed 5%, #dfdfdf 100%);

    background-color:#ededed;

  text-shadow:1px 2px 0px #ffffff;

  border:1px solid #ffffff;

}

​