Created
February 16, 2020 15:08
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checkbox to toggle (alias switch) element
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| <!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> |
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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