body {
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  overflow: hidden;
  width: 100%;
  height: 100%;
}
.anim, .anim svg {
  position: relative;
  width: 100%;
  height: 100%;
}
.anim path {
  stroke-width: 2;
}

.terugknop {
    position: absolute;
    z-index: 999;
    background: #eee;
    border: 0;
    padding: 8px 15px;
    top: 0;
    left: 0;
}

.terugknop:hover {
    cursor: pointer;
	background: #ddd;
}