input[type="checkbox"]:not(:checked), input[type="checkbox"]:checked {
    position: absolute;
    left: -9999px;
    display: none;
}

input[type="checkbox"]:not(:checked) + label, input[type="checkbox"]:checked + label {
    position: relative;
    padding-left: 25px;
    cursor: pointer;
}
.label {
    font-size: 16px;
    font-weight: 400;
    color: #333333;
    display: inline-block;
    border-radius: 0;
    padding: 3px 10px;
    line-height: 1;
    cursor: pointer;
}

input[type="checkbox"]:not(:checked) + label:before, input[type="checkbox"]:checked + label:before {
    content: '';
    position: absolute;
    left: 0;
    top: 0px;
    width: 20px;
    height: 20px;
    border: 1px solid #B3B7BD;
    background: #ffffff;
    border-radius: 3px;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    -webkit-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
}

input[type="checkbox"]:not(:checked) + label:after, input[type="radio"]:not(:checked) + label:after {
    opacity: 0;
    -transform: scale(0);
}
input[type="checkbox"]:not(:checked) + label:after, input[type="checkbox"]:checked + label:after {
    content: '\f00c';
    font-family: FontAwesome;
    position: absolute;
    top: 0px;
    left: 0px;
    font-size: 14px;
    line-height: 20px;
    color: #333333;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    -o-transition: all 0.2s ease-in-out;
    -ms-transition: all 0.2s ease-in-out;
    -moz-transition: all 0.2s ease-in-out;
    -webkit-transition: all 0.2s ease-in-out;
    transition: all 0.2s ease-in-out;
}