button.css

*,
html {
  box-sizing: border-box;
}

.button {
  font: bold 20px Arial;
  text-decoration: none;
  background-color: rgba(238, 238, 238, 0.1);
  color: #20c6e4;
  padding: 2px 6px 2px 6px;

  border-top: 0px;
  border-right: 0px;
  border-bottom: 0px;
  border-left: 0px;
}
html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  position: relative;
}
.sol {
  height: 100vh;
  width: 55px;
  display: inline-block;
  position: absolute;
  background-color: #5cbdba73;
}
.sag {
  height: 100vh;
  width: 136px;
  background-color: #5cbdba73;
  float: right;
}
.asagi {
  width: 100%;
  height: 111px;
  bottom: 0;
  background-color: #5cbdba73;
  position: absolute;
}
.yukari {
  width: 100%;
  height: 41px;
  background-color: #5cbdba73;

  position: absolute;
}
.anadiv {
  width: calc(100% - 191px);
  height: calc(100% - 152px);
  position: relative;
  opacity: 0.5;
  top: 41px;
  left: 55px;
  right: 136px;
  overflow: hidden;
  background-color: #f0f0f0;
  bottom: 111px;
}
.canvasMain {
  position: absolute;
  width: 100px;
  height: 50px;
  overflow: hidden;
  background-color: #f0f0f0;
}
.canvasLayer {
  position: absolute;
  width: 10px;
  height: 50px;
  background-color: rgba(0, 0, 0, 0);
}