h3 {
  color: white;
  margin-left: 5px;
  margin-right: 5px;
  margin-top: 5px;
}

h4 {
  color: white;
  margin-left: 5px;
  margin-right: 5px;
  margin-top: 5px;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  width: auto;
  background-color: #2d2d2d;
  position: fixed;
  height: 100%;
  overflow: auto;
}

li a {
  display: block;
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-top: 1px solid #bbb;
}

li:last-child {
  border-bottom: 1px solid #bbb;
  ;
}

li a:hover:not(.active) {
  background-color: #2d2d2d;
  color: white;
}

canvas {
  background: white;
  padding: 0;
  margin: auto;
  display: block;
  width: 600px;
  height: 600px;
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}

label {
  font-weight: normal !important;
  height: 0;
}

.inputfile {
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  z-index: -1;
}

#pen-color {
  right: 0;
}