Is it possible to change the background-color of a radio button by CSS ? I looked on the internet but I only find solutions in JS and I do not understand them necessarily. I tried this but it doesn't work :
input[type="radio"]:checked {
background-color: red;
}
<div class="sound-signal">
Signal sonore :
<input type="radio" name="soundsignal" id="soundsignal" checked="checked">
<label for="soundsignal">Oui</label>
<input type="radio" name="soundsignal">
<label for="soundsignal">Non</label>
</div>