Los interruptores de tema se han vuelto populares en la web, permitiendo a los usuarios cambiar entre modos de luz y oscuridad de manera sencilla. Estos interruptores no solo mejoran la experiencia del usuario, sino que también pueden ser un elemento atractivo en el diseño de tu sitio web. En este artículo, te mostraremos cómo crear un interruptor de tema en HTML y CSS como el que se muestra a continuación:
HTML
body {
background-color: black;
display: flex;
height: 100vh;
align-items: center;
justify-content: center;
}
.theme {
display: flex;
align-items: center;
-webkit-tap-highlight-color: transparent;
}
.theme__fill,
.theme__icon {
transition: 0.3s;
}
.theme__fill {
display: block;
mix-blend-mode: difference;
position: fixed;
inset: 0;
height: 100%;
transform: translateX(-100%);
}
.theme__icon,
.theme__toggle {
z-index: 1;
}
.theme__icon,
.theme__icon-part {
position: absolute;
}
.theme__icon {
display: block;
top: 23%;
left: 14%;
width: 1.5em;
height: 1.5em;
}
.theme__icon-part {
border-radius: 50%;
box-shadow: 0.4em -0.4em 0 0.5em hsl(0,0%,100%) inset;
top: calc(50% - 0.5em);
left: calc(50% - 0.5em);
width: 1em;
height: 1em;
transform: scale(0.5);
}
.theme__icon-part ~ .theme__icon-part {
background-color: hsl(0,0%,100%);
border-radius: 0.05em;
top: 50%;
left: calc(50% - 0.05em);
transform: rotate(0deg) translateY(0.5em);
transform-origin: 50% 0;
width: 0.1em;
height: 0.2em;
}
.theme__icon-part:nth-child(3) {
transform: rotate(45deg) translateY(0.45em);
}
.theme__icon-part:nth-child(4) {
transform: rotate(90deg) translateY(0.45em);
}
.theme__icon-part:nth-child(5) {
transform: rotate(135deg) translateY(0.45em);
}
.theme__icon-part:nth-child(6) {
transform: rotate(180deg) translateY(0.45em);
}
.theme__icon-part:nth-child(7) {
transform: rotate(225deg) translateY(0.45em);
}
.theme__icon-part:nth-child(8) {
transform: rotate(270deg) translateY(0.5em);
}
.theme__icon-part:nth-child(9) {
transform: rotate(315deg) translateY(0.5em);
}
.theme__label,
.theme__toggle,
.theme__toggle-wrap {
position: relative;
}
.theme__toggle,
.theme__toggle:before {
display: block;
}
.theme__toggle {
background-color: hsl(48,90%,85%);
border-radius: 25% / 50%;
padding: 0.25em;
width: 6em;
height: 3em;
-webkit-appearance: none;
appearance: none;
}
.theme__toggle:before {
background-color: hsl(48,90%,55%);
border-radius: 50%;
content: "";
width: 2.5em;
height: 2.5em;
transition: 0.3s;
}
.theme__toggle:focus {
outline: transparent;
}
.theme__toggle:checked {
background-color: hsl(198,90%,15%);
}
.theme__toggle:checked:before,
.theme__toggle:checked ~ .theme__icon {
transform: translateX(3em);
}
.theme__toggle:checked:before {
background-color: hsl(198,90%,55%);
}
.theme__toggle:checked ~ .theme__fill {
transform: translateX(0);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(1) {
box-shadow: 0.2em -0.2em 0 0.2em hsl(0,0%,100%) inset;
transform: scale(1);
top: 0.2em;
left: -0.2em;
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part ~ .theme__icon-part {
opacity: 0;
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(2) {
transform: rotate(45deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(3) {
transform: rotate(90deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(4) {
transform: rotate(135deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(5) {
transform: rotate(180deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(6) {
transform: rotate(225deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(7) {
transform: rotate(270deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(8) {
transform: rotate(315deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(9) {
transform: rotate(360deg) translateY(0.8em);
}
.theme__toggle-wrap {
margin: 0 0.75em;
}
CSS
body {
background-color: black;
display: flex;
height: 100vh;
align-items: center;
justify-content: center;
}
.theme {
display: flex;
align-items: center;
-webkit-tap-highlight-color: transparent;
}
.theme__fill,
.theme__icon {
transition: 0.3s;
}
.theme__fill {
display: block;
mix-blend-mode: difference;
position: fixed;
inset: 0;
height: 100%;
transform: translateX(-100%);
}
.theme__icon,
.theme__toggle {
z-index: 1;
}
.theme__icon,
.theme__icon-part {
position: absolute;
}
.theme__icon {
display: block;
top: 23%;
left: 14%;
width: 1.5em;
height: 1.5em;
}
.theme__icon-part {
border-radius: 50%;
box-shadow: 0.4em -0.4em 0 0.5em hsl(0,0%,100%) inset;
top: calc(50% - 0.5em);
left: calc(50% - 0.5em);
width: 1em;
height: 1em;
transform: scale(0.5);
}
.theme__icon-part ~ .theme__icon-part {
background-color: hsl(0,0%,100%);
border-radius: 0.05em;
top: 50%;
left: calc(50% - 0.05em);
transform: rotate(0deg) translateY(0.5em);
transform-origin: 50% 0;
width: 0.1em;
height: 0.2em;
}
.theme__icon-part:nth-child(3) {
transform: rotate(45deg) translateY(0.45em);
}
.theme__icon-part:nth-child(4) {
transform: rotate(90deg) translateY(0.45em);
}
.theme__icon-part:nth-child(5) {
transform: rotate(135deg) translateY(0.45em);
}
.theme__icon-part:nth-child(6) {
transform: rotate(180deg) translateY(0.45em);
}
.theme__icon-part:nth-child(7) {
transform: rotate(225deg) translateY(0.45em);
}
.theme__icon-part:nth-child(8) {
transform: rotate(270deg) translateY(0.5em);
}
.theme__icon-part:nth-child(9) {
transform: rotate(315deg) translateY(0.5em);
}
.theme__label,
.theme__toggle,
.theme__toggle-wrap {
position: relative;
}
.theme__toggle,
.theme__toggle:before {
display: block;
}
.theme__toggle {
background-color: hsl(48,90%,85%);
border-radius: 25% / 50%;
padding: 0.25em;
width: 6em;
height: 3em;
-webkit-appearance: none;
appearance: none;
}
.theme__toggle:before {
background-color: hsl(48,90%,55%);
border-radius: 50%;
content: "";
width: 2.5em;
height: 2.5em;
transition: 0.3s;
}
.theme__toggle:focus {
outline: transparent;
}
.theme__toggle:checked {
background-color: hsl(198,90%,15%);
}
.theme__toggle:checked:before,
.theme__toggle:checked ~ .theme__icon {
transform: translateX(3em);
}
.theme__toggle:checked:before {
background-color: hsl(198,90%,55%);
}
.theme__toggle:checked ~ .theme__fill {
transform: translateX(0);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(1) {
box-shadow: 0.2em -0.2em 0 0.2em hsl(0,0%,100%) inset;
transform: scale(1);
top: 0.2em;
left: -0.2em;
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part ~ .theme__icon-part {
opacity: 0;
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(2) {
transform: rotate(45deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(3) {
transform: rotate(90deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(4) {
transform: rotate(135deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(5) {
transform: rotate(180deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(6) {
transform: rotate(225deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(7) {
transform: rotate(270deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(8) {
transform: rotate(315deg) translateY(0.8em);
}
.theme__toggle:checked ~ .theme__icon .theme__icon-part:nth-child(9) {
transform: rotate(360deg) translateY(0.8em);
}
.theme__toggle-wrap {
margin: 0 0.75em;
}
Con este código, habrás creado un elegante interruptor de tema para tu sitio web que permite a los usuarios cambiar entre el modo claro y oscuro. Este elemento no solo mejora la experiencia del usuario, sino que también agrega un toque de estilo a tu diseño web. ¡Prueba esta funcionalidad en tu sitio y sorprende a tus visitantes con una experiencia visual atractiva y funcional!