body {overflow: hidden;}

.abc canvas {
  border:1px solid black;
  border-radius:10px;
}

.abc div {
  float:left;
  display:inline-block;
}

.abc button {
  border:none;
  padding:10px;
  border-radius: 7px;
  outline:none;
  background-color: #008bdb;
  color:white;
  cursor:pointer;
}

.slider {
  -webkit-appearance: none;
  width: 500px;
  height: 8px;
  border-radius:10px;
  background: #d3d3d3;
  outline: none;
  opacity: 0.7;
  -webkit-transition: .2s;
  transition: opacity .2s;
}

.slider:hover {
  opacity: 1;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius:20px;
  border:1px solid black;
  background: #008bdb;
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius:20px;
  border:1px solid black;
  background: #008bdb;
  cursor: pointer;
}