.switch {
    width: 45px;
    height: 22px;
    position: relative;
    border: 1px solid #dfdfdf;
    background-color: #fdfdfd;
    box-shadow: #dfdfdf 0 0 0 0 inset;
    border-radius: 20px;
    background-clip: content-box;
    display: inline-block;
    -webkit-appearance: none;
    user-select: none;
    outline: none;
    cursor: pointer;
    position: absolute;
    top: 0;
    left: 0;
}
.switch:before {
    content: '';
    width: 20px;
    height: 20px;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 20px;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
}
.switch:checked {
    border-color: #378642;
    box-shadow: #378642 0 0 0 16px inset;
    background-color: #378642;
}
.switch:checked:before {
    left: 24px;
}
.switch.switch-anim {
    transition: border cubic-bezier(0, 0, 0, 1) 0.4s, box-shadow cubic-bezier(0, 0, 0, 1) 0.4s;
}
.switch.switch-anim:before {
    transition: left 0.3s;
}
.switch.switch-anim:checked {
    box-shadow: #378642 0 0 0 16px inset;
    background-color: #378642;
    transition: border ease 0.4s, box-shadow ease 0.4s, background-color ease 1.2s;
}
.switch.switch-anim:checked:before {
    transition: left 0.3s;
}