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checkbox to toggle (alias switch) element
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>checkbox to toggle element</title>
<style>
html {
box-sizing: border-box;
}
*,
*::before,
*::after {
box-sizing: inherit;
}
:root {
--switch-size: 50px;
--switch-border: calc(var(--switch-size) / 20);
--active-color: #1c74e9;
--inactive-color: #fff;
--active-background: #8db9f4;
--inactive-background: #ccc;
--active-shadow: rgba(0, 0, 255, 0.2);
--inactive-shadow: rgba(99, 99, 99, 0.4);
--transition-duration: 0.3s;
}
.switch {
position: relative;
cursor: pointer;
display: inline-block;
min-width: var(--switch-size);
height: calc(var(--switch-size) / 3);
margin: calc(var(--switch-size) / 6);
}
.switch input {
opacity: 0;
width: 0;
height: 0;
font-size: 0;
}
.switch span {
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
background-color: var(--inactive-background);
transition: var(--transition-duration);
user-select: none;
box-shadow: 0 1px 1px 0 var(--inactive-shadow);
border-radius: calc(var(--switch-size) / 2 - 2 * var(--switch-border));
}
.switch span:before {
content: '';
position: absolute;
height: calc(var(--switch-size) / 2 - var(--switch-border));
width: calc(var(--switch-size) / 2 - var(--switch-border));
left: calc(var(--switch-border) * -1);
bottom: calc(var(--switch-border) * -1);
background-color: var(--inactive-color);
box-shadow: 0 1px 4px 0 rgba(0, 0, 0, 0.6);
transition: transform var(--transition-duration), background-color var(--transition-duration);
}
.switch strong {
position: absolute;
margin-left: var(--switch-size);
}
.switch input:focus+span:before {
box-shadow: 0 0 0 calc(var(--switch-size) / 8) var(--inactive-shadow);
}
.switch input:checked:focus+span:before {
box-shadow: 0 0 0 calc(var(--switch-size) / 8) var(--active-shadow);
}
.switch input:checked+span::before {
background-color: var(--active-color);
}
.switch input:checked+span {
background-color: var(--active-background);
}
.switch :checked+span:before {
transform: translateX(calc(var(--switch-size) / 2 + 2 * var(--switch-border)));
}
.switch span:before {
border-radius: 50%;
}
</style>
</head>
<body>
<label class="switch">
<input type="checkbox" checked>
<span></span>
<strong>text</strong>
</label>
</body>
</html>
@iiic

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@iiic iiic commented Feb 16, 2020

ještě by se dal doplnit drobný javascript, z UX pohledu je tam možnost pokud je prvek aktivní přepínat ho ještě šipkami na klávesnici vpravo, vlevo

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