Checkboxes in web pages – how to make them bigger?

Question

The standard checkboxes rendered in most browsers are quite small and don’t increase in size even when a larger font is used. What is the best, browser-independent way to displ

Answer 1

Pure modern 2020 CSS only decision, without blurry scaling or non-handy transforming. And with tick! =)

Works nice in Firefox and Chromium-based browsers.

So, you can rule your checkboxes purely ADAPTIVE, just by setting parent block's font-height and it will grow with text!

input[type='checkbox'] {
  -moz-appearance: none;
  -webkit-appearance: none;
  appearance: none;
  vertical-align: middle;
  outline: none;
  font-size: inherit;
  cursor: pointer;
  width: 1.0em;
  height: 1.0em;
  background: white;
  border-radius: 0.25em;
  border: 0.125em solid #555;
  position: relative;
}

input[type='checkbox']:checked {
  background: #adf;
}

input[type='checkbox']:checked:after {
  content: "✔";
  position: absolute;
  font-size: 90%;
  left: 0.0625em;
  top: -0.25em;
}

 checkbox one
 another checkbox