mdb-ui-kit/less/checkboxes.less

// main: material.less

.form-horizontal .checkbox {
    padding-top: 15px;
}
.checkbox {
    label {
        cursor: pointer;
        padding-left: 45px;
        position: relative;
        span {
            display: block;
            position: absolute;
            left: 0px;
            transition-duration: 0.2s;
        }
        .check:after {
            display: block;
            position: absolute;
            content: "";
            background-color: @lightbg-text;
            left: -5px;
            top: -15px;
            height: 50px;
            width: 50px;
            border-radius: 100%;
            z-index: 1;
            opacity: 0;
            margin: 0;
        }
        .check:before {
            display: block;
            content: "";
            border: 2px solid @lightbg-text;
            height: 20px;
            width: 20px;
            .transition-delay(0.2s);
        }
    }

    // Variations
    .variations(~" .check", color, @success);

    // Hide native checkbox
    input[type=checkbox] { display: none; }

    input[type=checkbox] ~ .check:before {
        position: absolute;
        top: 2px;
        left: 11px;
        width: 18px;
        height: 18px;
        border: solid 2px;
        border-color: #5a5a5a;
        .animation(uncheck 300ms ease-out forwards);
    }

    input[type=checkbox]:checked ~ .check:before {
        .animation(check 300ms ease-out forwards);
    }

    // Ripple effect on click
    input[type=checkbox]:not(:checked) ~ .check:after {
        .animation(rippleOff 500ms);
    }
    input[type=checkbox]:checked ~ .check:after {
        .animation(rippleOn 500ms);
    }

    // Style for disabled inputs
    input[type=checkbox][disabled]:not(:checked) ~ .check:before {
        opacity: 0.5;
    }
    input[type=checkbox][disabled] ~ .check:after {
        background-color: @lightbg-text;
        transform: rotate(-45deg);
    }

    .variations(~" input[type=checkbox]:checked ~ .check:after", background-color, @success);
}


@-webkit-keyframes uncheck {
    0% {
        top: -3px;
        left: 17px;
        width: 10px;
        height: 21px;
        border-color: #0f9d58;
        border-left-color: transparent;
        border-top-color: transparent;
        transform: rotate(45deg);
    }
    50% {
        top: 14px;
        left: 17px;
        width: 4px;
        height: 4px;
        transform: rotate(45deg);
        border-color: #0f9d58;
        border-left-color: transparent;
        border-top-color: transparent;
    }
    51% {
        border-color: #5a5a5a;
        border-left-color: #5a5a5a;
        border-top-color: #5a5a5a;
    }
    100% {
        top: 1px;
        left: 12px;
        width: 18px;
        height: 18px;
        transform: rotate(0deg);
        border-color: #5a5a5a;
        border-left-color: #5a5a5a;
        border-top-color: #5a5a5a;
    }
}

.keyframe-check() {
    100% {
        top: -3px;
        left: 17px;
        width: 10px;
        height: 21px;
        transform: rotate(45deg);
        border-color: #0f9d58;
        border-left-color: transparent;
        border-top-color: transparent;
    }
    51% {
        border-left: transparent;
        border-top-color: transparent;
    }
    50% {
        top: 14px;
        left: 17px;
        width: 4px;
        height: 4px;
        transform: rotate(45deg);
        border-color: #5a5a5a;
        border-left-color: #5a5a5a;
        border-top-color: #5a5a5a;
    }
    0% {
        top: 1px;
        left: 12px;
        width: 18px;
        height: 18px;
        transform: rotate(0deg);
        border-color: #5a5a5a;
        border-left-color: #5a5a5a;
        border-top-color: #5a5a5a;
    }
}
@-webkit-keyframes check {.keyframe-check()}
@-moz-keyframes check {.keyframe-check()}
@-ms-keyframes check {.keyframe-check()}
@-o-keyframes check {.keyframe-check()}
@keyframes check {.keyframe-check()}

.ripple() {
    0% {
        opacity: 0;
    }
    50% {
        opacity: 0.2;
    }
    100% {
        opacity: 0;
    }
}

@-webkit-keyframes rippleOn {.ripple()}
@-moz-keyframes rippleOn {.ripple()}
@-ms-keyframes rippleOn {.ripple()}
@-o-keyframes rippleOn {.ripple()}
@keyframes rippleOn {.ripple()}

@-webkit-keyframes rippleOff {.ripple()}
@-moz-keyframes rippleOff {.ripple()}
@-ms-keyframes rippleOn {.ripple()}
@-o-keyframes rippleOff {.ripple()}
@keyframes rippleOff {.ripple()}