CodePen Embed - :default pseudo-class

<input type="radio" id="one" name="group">
<label for="one">One</label>

<input type="radio" id="two" name="group" checked>
<label for="two">Two</label>

input:default {
  box-shadow: 0 0 2px 2px green;
}

input:default + label {
  color: green;
}

This Pen is owned by Esteban Herrera on CodePen.

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