.radiobutton input[type="radio"] {
    opacity: 0;
}

.radiobutton label {
    position: relative;
    display: inline-block;
    padding-left: 22px;
}

.radiobutton label::before,
.radiobutton label::after {
    position: absolute;
    content: "";
    display: inline-block;
}

.radiobutton label::before {
    height: 16px;
    width: 16px;
    border: 1px solid;
    border-radius: 50%;
    left: 0;
    top: 3px;
}

.radiobutton label::after {
    height: 10px;
    width: 10px;
    background: #000;
    left: 4px;
    top: 7px;
    border-radius: 50%;
}

.radiobutton input[type="radio"] + label::after {
    content: none;
}

.radiobutton input[type="radio"]:checked + label::after {
    content: "";
}