.switch {
 --button-width: 3em;
 --button-height: 1.5em;
 --toggle-diameter: 1em;
 --button-toggle-offset: calc((var(--button-height) - var(--toggle-diameter)) / 2);
 --toggle-shadow-offset: 10px;
 --toggle-wider: 3em;
 --color-grey: #cccccc;
 --color-green: #086eb6;
}

.slider {
 cursor: pointer;
 display: inline-block;
 width: var(--button-width);
 height: var(--button-height);
 background-color: var(--color-grey);
 border-radius: calc(var(--button-height) / 2);
 position: relative;
 transition: 0.3s all ease-in-out;
}

.slider::after {
 content: "";
 display: inline-block;
 width: var(--toggle-diameter);
 height: var(--toggle-diameter);
 background-color: #fff;
 border-radius: calc(var(--toggle-diameter) / 2);
 position: absolute;
 top: var(--button-toggle-offset);
 transform: translateX(var(--button-toggle-offset));
 box-shadow: var(--toggle-shadow-offset) 0 calc(var(--toggle-shadow-offset) * 4) rgba(0, 0, 0, 0.1);
 transition: 0.3s all ease-in-out;
}

.switch input[type="checkbox"]:checked + .slider {
 background-color: var(--color-green);
}

.switch input[type="checkbox"]:checked + .slider::after {
 transform: translateX(calc(var(--button-width) - var(--toggle-diameter) - var(--button-toggle-offset)));
 box-shadow: calc(var(--toggle-shadow-offset) * -1) 0 calc(var(--toggle-shadow-offset) * 4) rgba(0, 0, 0, 0.1);
}

.switch input[type="checkbox"] {
 display: none;
}

.switch input[type="checkbox"]:active + .slider::after {
 width: var(--toggle-wider);
}

.switch input[type="checkbox"]:checked:active + .slider::after {
 transform: translateX(calc(var(--button-width) - var(--toggle-wider) - var(--button-toggle-offset)));
}