[CSS] CSS로 on/off체크박스만들기

<!-- HTML -->

<div class="check">
    <div class="button">
        <input type="checkbox" class="checkbox">
        <div class="knobs"></div>
        <div class="layer"></div>
    </div>
</div>

/* CSS */

/* on/off 박스 */

.check {
    position: relative;
    display: flex;
    flex-direction: column;
    color: #97acd1;
    align-items: center;
}
.check p {
    font-size: 14px;
    color: #97acd1;
    margin-bottom: 5px;
}
.check .button {
    position: relative;
    top: 50%;
    width: 50px;
    height: 25px;
    border-radius: 100px;
}
.check .button .checkbox {
    position: relative;
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    opacity: 0;
    cursor: pointer;
    z-index: 3;
}
.check .button .knobs {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 2;
    transition: 0.3s ease all;
}
.check .button .layer {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    width: 100%;
    border-radius: 100px;
    background-color: #b9b9b9;
    transition: 0.3s ease all;
    z-index: 1;
}
.check .button .knobs:before {
    content: "";
    position: absolute;
    top: 5px;
    left: 6px;
    width: 15px;
    height: 15px;
    font-size: 10px;
    font-weight: bold;
    text-align: center;
    line-height: 1;
    background-color: #fff;
    border-radius: 50%;
    transition: 0.3s cubic-bezier(0.18, 0.89, 0.35, 1.15) all;
}
.check .button .checkbox:checked + .knobs:before {
    content: "";
    left: 30px;
}
.check .button .checkbox:checked ~ .layer {
    background-color: #2ebee3;
}