.form-group {
    display: block;
    margin-bottom: 15px;
}

.form-group input {
    padding: 0;
    height: initial;
    width: initial;
    margin-bottom: 0;
    display: none;
    cursor: pointer;
}

.form-group label {
    position: relative;
    cursor: pointer;
}

.form-group label:before {
    content: '';
    -webkit-appearance: none;
    background-color: transparent;
    border: 1px solid #11ab69;
    padding: 10px;
    display: inline-block;
    position: relative;
    vertical-align: middle;
    cursor: pointer;
    margin-right: 5px;
}
.form-group input:checked+label:before {

    background-color: #11ab69;
    border-color:transparent ;

}

.form-group input:checked+label:after {
    content: '';
    display: block;
    position: absolute;
    top: 2px;
    left: 9px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}