galaxy/Checkboxes/Praashoo7_tough-skunk-14.html

<label class="container">
  <input checked="checked" type="checkbox">
  <div class="checkmark"></div>
</label>
<style>
/* From Uiverse.io by Praashoo7 - Tags: checkbox */
/* Hide the default checkbox */
.container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.container {
  display: block;
  position: relative;
  cursor: pointer;
  font-size: 20px;
  user-select: none;
}

/* Create a custom checkbox */
.checkmark {
  position: relative;
  top: 0;
  left: 0;
  height: 1.34em;
  width: 1.3em;
  background-color: #ccc;
  transition: .4s ease-in-out;
  border-radius: 50%;
}

.checkmark:hover {
  background-color: grey;
}

/* When the checkbox is checked, add a blue background */
.container input:checked ~ .checkmark {
  background-color: #2196F3;
}

/* Create the checkmark/indicator (hidden when not checked) */
.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

/* Show the checkmark when checked */
.container input:checked ~ .checkmark:after {
  display: block;
}

/* Style the checkmark/indicator */
.container .checkmark:after {
  left: 0.25em;
  top: 0.29em;
  width: 0.50em;
  height: 0.50em;
  border: solid white;
  background-color: white;
  border-radius: 50%;
}
</style>