body {
  margin: 0;
  padding: 0;
}

.panelleft {
  width: 14%;
  float: left;
}

.panelleft img {
  width: 100%;
}

.panelright {
  width: 86%;
  float: left;
}

canvas { 
   position: absolute;
    top: 0;
    left: 0;
}

#canvasfig {
  position: relative;
  z-index: -1;
}

#canvas1{
  position: absolute;
  left: 14%;
  z-index: 0;
}

#canvas2{
  position: absolute;
  left: 14%;
  z-index: 0;
}

.grid-container {
  display: grid;
  grid-template-columns: 200px 100px 200px;
}

.item1 {
  grid-column: 1 / span 3;
  grid-row: 1;
}

.item2 {
  grid-column: 1;
  grid-row: 2;
}

.item3 {
  grid-column: 2;
  grid-row: 2;
}

.item4 {
  grid-column: 3;
  grid-row: 2;
}

.slidecontainer {
  width: 100%;
}

.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 15px;
  border-radius: 5px;
  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: 25px;
  height: 25px;
  border-radius: 50%;
  background: #04AA6D;
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  background: #04AA6D;
  cursor: pointer;
}