.container
input
&:checked
& ~ .checkmark
&:after
&.container
&:hover
input
& ~ .checkmark
&.container
.checkmark
&:after
outline: none;
<div class="btn-group" role="group" aria-label="Basic radio toggle button group">
<input type="radio" class="btn-check" name="btnradio" id="btnradio1" autocomplete="off" checked>
<label class="btn btn-outline-primary shadow-none" for="btnradio1">Radio 1</label>
<input type="radio" class="btn-check" name="btnradio" id="btnradio2" autocomplete="off">
<label class="btn btn-outline-primary shadow-none" for="btnradio2">Radio 2</label>
<input type="radio" class="btn-check" name="btnradio" id="btnradio3" autocomplete="off">
<label class="btn btn-outline-primary shadow-none" for="btnradio3">Radio 3</label>
</div>
if (isset($_POST['currentTier']) && strpos($_GET['type'], 'placements')===false) $description .= "<div id=details-2 class='col-12 col-xl-4 col-lg-12 mb-xl-5 mb-5'><div class='d-flex b-skills'><div class='height:70px;'><div class='text-bold'>Текущая лига:</div> <div class='text-primary'> ".$tiers[$_POST['currentTier']]."</div></div></div></div></br>";