body { 
  margin: 0; 
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#canvas_div { 
  width: 100%; 
  height: 100%;
}

#toss_icon_div {
  position: fixed;
  width: 60px;
  height: 60px;
  top: 40px;
  right: 50px;
}

#toss_icon_svg {
  position: relative;
  width: 100%;
  top: 50%;
  left: 50%;
  transform: translate(-50%,-50%);
  transition: width 150ms;
}
#toss_icon_svg:hover {
  width: 110%;
  cursor: pointer;
}