div {
  border: 7px solid red;
  border-radius: 20px;
  display: inline-block;
  background-color: #b23232b7;
  padding: 5px;
}

div.var-editor {
  border: 5px solid red;
}

canvas {
  background-color: #000;
  top: 0;
  left: 0;
  position: absolute;
  z-index: -1;
}


.title {
  font-family: Tahoma;
  color: white;
  margin: 0px;
  position: absolute;
  z-index: 4;
  font-size: large;
}

button {
  background-color: #468735;
  color: white;
  border: none;
  padding: 5px;
  border-radius: 5px;
  cursor: pointer;
  position: absolute;
  top: 10px;
  left: 90%;
  height: 60px;
  width: 60px;
}

p, label {
  font-family: calibri;
  color: white;
  margin: 0px;
}

/* input slider styles */
input[type="range"] {
  appearance: none;
} /* this hides the blue color of the dot in the range input */

input[type="range"]::-webkit-slider-runnable-track {
  /* this is the line in the runnable track */
  background: #468735;
  height: 5px;
  cursor: w-resize;
}
input[type="range"]::-webkit-slider-thumb {
  /* this is the dot in the runnable track */
  -webkit-appearance: none;
  height: 15px;
  width: 15px;
  background: #b8d9b0;
  margin-top: -5px;
  border-radius: 50%;
}

@media screen and (max-width: 400px) {
  div {
    border: 5px solid red;
    border-radius: 10px;
    padding: 3px;
  }

  .title {
    font-size: medium;
    top: 5px;
    left: 5px;
  }

  button {
    top: 5px;
    left: 80%;
    height: 50px;
    width: 50px;
  }

  input[type="range"]::-webkit-slider-runnable-track {
    height: 3px;
  }

  input[type="range"]::-webkit-slider-thumb {
    height: 10px;
    width: 10px;
    margin-top: -3px;
  }
}