.switch {
    cursor: pointer;
}
.switch input {
    display: none;
}
.switch input + span {
    width: 48px;
    height: 28px;
    border-radius: 14px;
    transition: all 0.3s ease;
    display: block;
    position: relative;
    background: #FF4651;
    box-shadow: 0 8px 16px -1px rgba(255, 70, 81, 0.2);
}
.switch input + span:before, .switch input + span:after {
    content: "";
    display: block;
    position: absolute;
    transition: all 0.3s ease;
}
.switch input + span:before {
    top: 5px;
    left: 5px;
    width: 18px;
    height: 18px;
    border-radius: 9px;
    border: 5px solid #fff;
}
.switch input + span:after {
    top: 5px;
    left: 32px;
    width: 6px;
    height: 18px;
    border-radius: 40%;
    transform-origin: 50% 50%;
    background: #fff;
    opacity: 0;
}
.switch input + span:active {
    transform: scale(0.92);
}
.switch input:checked + span {
    background: #48EA8B;
    box-shadow: 0 8px 16px -1px rgba(72, 234, 139, 0.2);
}
.switch input:checked + span:before {
    width: 0px;
    border-radius: 3px;
    margin-left: 27px;
    border-width: 3px;
    background: #fff;
}
.switch input:checked + span:after {
    -webkit-animation: blobChecked 0.35s linear forwards 0.2s;
    animation: blobChecked 0.35s linear forwards 0.2s;
}
.switch input:not(:checked) + span:before {
    -webkit-animation: blob 0.85s linear forwards 0.2s;
    animation: blob 0.85s linear forwards 0.2s;
}

@-webkit-keyframes blob {
    0%, 100% {
        transform: scale(1);
    }
    30% {
        transform: scale(1.12, 0.94);
    }
    60% {
        transform: scale(0.96, 1.06);
    }
}

@keyframes blob {
    0%, 100% {
        transform: scale(1);
    }
    30% {
        transform: scale(1.12, 0.94);
    }
    60% {
        transform: scale(0.96, 1.06);
    }
}
@-webkit-keyframes blobChecked {
    0% {
        opacity: 1;
        transform: scaleX(1);
    }
    30% {
        transform: scaleX(1.44);
    }
    70% {
        transform: scaleX(1.18);
    }
    50%, 99% {
        transform: scaleX(1);
        opacity: 1;
    }
    100% {
        transform: scaleX(1);
        opacity: 0;
    }
}
@keyframes blobChecked {
    0% {
        opacity: 1;
        transform: scaleX(1);
    }
    30% {
        transform: scaleX(1.44);
    }
    70% {
        transform: scaleX(1.18);
    }
    50%, 99% {
        transform: scaleX(1);
        opacity: 1;
    }
    100% {
        transform: scaleX(1);
        opacity: 0;
    }
}