html, body {
  margin: 0;
  padding: 0;
  background-color: black;
}
canvas {
  padding-left: 0;
  padding-right: 0;
  margin-left: auto;
  margin-right: auto;
  display: block;
}

.button {
  position: absolute;
  background: transparent;
    border: none !important;
    font-size:0;

}

.slider {
  -webkit-appearance: none;  /* Override default CSS styles */
  appearance: none;
  height: 25px; /* Specified height */
  background: rgb(0,0,255); /* Grey background */
  outline: none; /* Remove outline */
  opacity: 0.7; /* Set transparency (for mouse-over effects on hover) */
  -webkit-transition: .2s; /* 0.2 seconds transition on hover */
  transition: opacity .2s;
}

.slider:hover {
  opacity: 1; /* Fully shown on mouse-over */
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none; /* Override default look */
  appearance: none;
  width: 35px; /* Set a specific slider handle width */
  height: 35px; /* Slider handle height */
  background: magenta; /* Green background */
  border-style: solid;
  border-color: rgb(255,255,0);
  cursor: pointer; /* Cursor on hover */
}

.slider::-moz-range-thumb {
  width: 25px; /* Set a specific slider handle width */
  height: 25px; /* Slider handle height */
  background: #04AA6D; /* Green background */
  cursor: pointer; /* Cursor on hover */
}

input[type="checkbox"] {
  appearance: none;
  background-color: black;
  margin: 0;
  font: inherit;
  color: currentColor;
  width: 2em;
  height: 2em;
  border: 0.15em solid;
  border-color: rgba(0,255,255,0.2);
  border-radius: 0.15em;
  transform: translateY(-0.075em);
  display: grid;
  place-content: center;
}
input[type="checkbox"]::before {
  content: "";
  width: 0.65em;
  height: 0.65em;
  transform: scale(0);
  box-shadow: inset 35px 35px magenta;
}
input[type="checkbox"]:checked {
  border-color: rgb(255,255,0);
}

input[type="checkbox"]:checked::before {
  transform: scale(2);

}

.off {
  display: none;
}