input[type=range] {
   -webkit-appearance: none;
   width: 140px;
}

input[type=range] {
  outline: none;
  -webkit-appearance: none;
  width: 140px;
}

Hide the outline around sliders while dragging.
blink1: Hide the outline around sliders while dragging.

Modifies the CSS for range input elements to remove the outline when the
element is selected.
