<input type='radio' id='desktop-product' name='product' value='desktop'>
<label for='desktop-product'>Desktop</label>
<br>
<input type='radio' id='mobile-product' name='product' value='mobile'>
<label for='mobile-product'>Mobile</label>

 input[type='radio'] {
   display: none;
 
   &+label{
     display: block;
     font-size: 1rem;  
     padding: 1rem .5rem;
     padding-left: 3rem;
     border: 1px solid transparent;
  }
  &:checked+label {
    border-color:YELLOWGREEN;
    background-color: lighten(YELLOWGREEN, 49%);
    background-image: url(tick.png)
    background-position: 16px 50%;
    background-repeat: no-repeat;
  }
}