               left: 4px;
                bottom: 4px;
                background-color: white;
                -webkit-transition: 0.4s;
                transition: 0.4s;
                border-radius: 50%;
            }

            .slider.small::before {
                height: 20px;
                width: 20px;
            }

            input:checked + .slider {
                background-color: #2196f3;
            }

            input:focus + .slider {
                box-shadow: 0 0 1px #2196f3;
  