css checkbox

<div class="checkbox-wrapper-1">
  <input id="example-1" class="substituted" type="checkbox" aria-hidden="true" />
  <label for="example-1">Checkbox</label>
</div>

<style>
  .checkbox-wrapper-1 *,
  .checkbox-wrapper-1 ::after,
  .checkbox-wrapper-1 ::before {
    box-sizing: border-box;
  }
  .checkbox-wrapper-1 [type=checkbox].substituted {
    margin: 0;
    width: 0;
    height: 0;
    display: inline;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
  }
  .checkbox-wrapper-1 [type=checkbox].substituted + label:before {
    content: "";
    display: inline-block;
    vertical-align: top;
    height: 1.15em;
    width: 1.15em;
    margin-right: 0.6em;
    color: rgba(0, 0, 0, 0.275);
    border: solid 0.06em;
    box-shadow: 0 0 0.04em, 0 0.06em 0.16em -0.03em inset, 0 0 0 0.07em transparent inset;
    border-radius: 0.2em;
    background: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xml:space="preserve" fill="white" viewBox="0 0 9 9"><rect x="0" y="4.3" transform="matrix(-0.707 -0.7072 0.7072 -0.707 0.5891 10.4702)" width="4.3" height="1.6" /><rect x="2.2" y="2.9" transform="matrix(-0.7071 0.7071 -0.7071 -0.7071 12.1877 2.9833)" width="6.1" height="1.7" /></svg>') no-repeat center, white;
    background-size: 0;
    will-change: color, border, background, background-size, box-shadow;
    transform: translate3d(0, 0, 0);
    transition: color 0.1s, border 0.1s, background 0.15s, box-shadow 0.1s;
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:enabled:active + label:before,
  .checkbox-wrapper-1 [type=checkbox].substituted:enabled + label:active:before {
    box-shadow: 0 0 0.04em, 0 0.06em 0.16em -0.03em transparent inset, 0 0 0 0.07em rgba(0, 0, 0, 0.1) inset;
    background-color: #f0f0f0;
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:checked + label:before {
    background-color: #3B99FC;
    background-size: 0.75em;
    color: rgba(0, 0, 0, 0.075);
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:checked:enabled:active + label:before,
  .checkbox-wrapper-1 [type=checkbox].substituted:checked:enabled + label:active:before {
    background-color: #0a7ffb;
    color: rgba(0, 0, 0, 0.275);
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:focus + label:before {
    box-shadow: 0 0 0.04em, 0 0.06em 0.16em -0.03em transparent inset, 0 0 0 0.07em rgba(0, 0, 0, 0.1) inset, 0 0 0 3.3px rgba(65, 159, 255, 0.55), 0 0 0 5px rgba(65, 159, 255, 0.3);
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:focus:active + label:before,
  .checkbox-wrapper-1 [type=checkbox].substituted:focus + label:active:before {
    box-shadow: 0 0 0.04em, 0 0.06em 0.16em -0.03em transparent inset, 0 0 0 0.07em rgba(0, 0, 0, 0.1) inset, 0 0 0 3.3px rgba(65, 159, 255, 0.55), 0 0 0 5px rgba(65, 159, 255, 0.3);
  }
  .checkbox-wrapper-1 [type=checkbox].substituted:disabled + label:before {
    opacity: 0.5;
  }

  .checkbox-wrapper-1 [type=checkbox].substituted.dark + label:before {
    color: rgba(255, 255, 255, 0.275);
    background-color: #222;
    background-image: url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" version="1.1" xml:space="preserve" fill="rgba(34, 34, 34, 0.999)" viewBox="0 0 9 9"><rect x="0" y="4.3" transform="matrix(-0.707 -0.7072 0.7072 -0.707 0.5891 10.4702)" width="4.3" height="1.6" /><rect x="2.2" y="2.9" transform="matrix(-0.7071 0.7071 -0.7071 -0.7071 12.1877 2.9833)" width="6.1" height="1.7" /></svg>');
  }
  .checkbox-wrapper-1 [type=checkbox].substituted.dark:enabled:active + label:before,
  .checkbox-wrapper-1 [type=checkbox].substituted.dark:enabled + label:active:before {
    background-color: #444;
    box-shadow: 0 0 0.04em, 0 0.06em 0.16em -0.03em transparent inset, 0 0 0 0.07em rgba(255, 255, 255, 0.1) inset;
  }
  .checkbox-wrapper-1 [type=checkbox].substituted.dark:checked + label:before {
    background-color: #a97035;
    color: rgba(255, 255, 255, 0.075);
  }
  .checkbox-wrapper-1 [type=checkbox].substituted.dark:checked:enabled:active + label:before,
  .checkbox-wrapper-1 [type=checkbox].substituted.dark:checked:enabled + label:active:before {
    background-color: #c68035;
    color: rgba(0, 0, 0, 0.275);
  }
</style>