.radio-btn input[type=radio] {
display: none; cursor:pointer
}

.radio-btn input[type=radio] + label {
display: inline-block;
position: relative;
padding:17px;
border-radius: 50%; margin-right:10px; cursor:pointer
}

.radio-btn input[type=radio]:checked + label {
cursor:pointer
}

.radio-btn input[type=radio]:checked + label:after {
position: absolute;
left:10px;
top:5px;
color: #fff; 
content: '\2714'; 
font-size:17px; cursor:pointer
}