Checkbox & radio button

by fersterin

HTML

<!-- Learn about this code on MDN: https://developer.mozilla.org/en-US/docs/Web/CSS/:indeterminate -->

<div>
  <input type="checkbox" id="checkbox">
  <label for="checkbox">This label starts out lime.</label>
</div>
<div>
  <input type="radio" id="radio">
  <label for="radio">This label starts out lime.</label>
</div>

CSS

input:indeterminate + label {
  background: lime;
}

JavaScript

var inputs = document.getElementsByTagName("input");

for (var i = 0; i < inputs.length; i++) {
  inputs[i].indeterminate = true;
}