JSFiddle - React, Tailwind, and code Playground

by Petra1999

HTML

<div class="custom-checkbox">
  <input type="checkbox" id="my-checkbox">
  <label for="my-checkbox">
    <i class="fake-checkbox"></i>
    <span>Text</span>
  </label>
</div>

SCSS

.custom-checkbox {
  display: block;
  position: relative;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;

  label {
    display: block;
    cursor: pointer;
    vertical-align: sub;
  }
}

.fake-checkbox {
  position: relative;
  display: inline-block;
  color: red;
  width: 1em;
  height: 1em;
  z-index: 0;
  border: 2px solid;
  border-radius: 3px;
  vertical-align: middle;
  margin-right: 0.5em;
  margin-top: -2px;
  transition: color 0.15s ease;

  &::after {
    opacity: 0;
    content: '✓';
    position: absolute;
    font-size: 1.4em;
    top: 0;
    left: -1px;
    font-weight: bold;
    transition: opacity 0.15s ease;
    line-height: 1;
  }
}

input[type='checkbox'] {
  width: auto !important;
  opacity: 0.0001 !important;
  position: absolute;
  left: 0.25em;
  top: 0.25em;
  margin: 0;
  padding: 0;

  &:checked+label .fake-checkbox {
    color: green;

    &::after {
      opacity: 1;
    }
  }

}