/* Base for label styling */
[type="checkbox"]:not(:checked),
[type="checkbox"]:checked {
    position: absolute;
    left: -9999px;
}

    [type="checkbox"]:not(:checked) + label,
    [type="checkbox"]:checked + label {
        position: relative;
        padding-left: 1.95em;
        cursor: pointer;
    }

        /* checkbox aspect */
        [type="checkbox"]:not(:checked) + label:before,
        [type="checkbox"]:checked + label:before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            width: 1.25em;
            height: 1.25em;
            border: 2px solid #ccc;
            background: #fff;
            border-radius: 4px;
            box-shadow: inset 0 1px 3px rgba(0,0,0,.1);
        }
        /* checked mark aspect */
        [type="checkbox"]:not(:checked) + label:after,
        [type="checkbox"]:checked + label:after {
            content: '\2714\0020';
            position: absolute;
            top: .08em;
            left: .22em;
            font-size: 1.3em;
            line-height: 0.8;
            color: #8F5332;
            transition: all .2s;
            font-family: 'Lucida Sans Unicode', 'Arial Unicode MS', Arial;
        }
        /* checked mark aspect changes */
        [type="checkbox"]:not(:checked) + label:after {
            opacity: 0;
            transform: scale(0);
        }

        [type="checkbox"]:checked + label:after {
            opacity: 1;
            transform: scale(1);
        }
/* disabled checkbox */
[type="checkbox"]:disabled:not(:checked) + label:before,
[type="checkbox"]:disabled:checked + label:before {
    box-shadow: none;
    border-color: #bbb;
    background-color: #ddd;
}

[type="checkbox"]:disabled:checked + label:after {
    color: #999;
}

[type="checkbox"]:disabled + label {
    color: #aaa;
}
/* accessibility */
[type="checkbox"]:checked:focus + label:before,
[type="checkbox"]:not(:checked):focus + label:before {
    border: 2px dotted blue;
}

/* hover style just for information */
label:hover:before {
    border: 2px solid #4778d9 !important;
}