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Simple color picker page
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0" /> | |
| <title>Color Picker</title> | |
| <style> | |
| :root { | |
| --current-color: #000000; | |
| } | |
| body { | |
| text-align: center; | |
| color: var(--current-color); | |
| } | |
| #color-text { | |
| width: 100px; | |
| color: var(--current-color); | |
| outline: slategray auto 1px; | |
| margin-right: 10px; | |
| } | |
| #color-input { | |
| width: 100px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div> | |
| <h2>😎这是示例文本🐶</h2> | |
| <p>点击色块调色</p> | |
| <p> | |
| # | |
| <input id="color-text" oninput="check_and_update(event.target.value)" /> | |
| </p> | |
| <input | |
| id="color-input" | |
| type="color" | |
| oninput="update(event.target.value)" | |
| /> | |
| </div> | |
| <script> | |
| const update = (color) => { | |
| document.documentElement.style.setProperty("--current-color", color); | |
| document.getElementById("color-text").value = color.substring(1); | |
| document.getElementById("color-input").value = color; | |
| localStorage.setItem("color-picker.color", color); | |
| }; | |
| const check_and_update = (color) => { | |
| if (/[0-9A-Fa-f]{6}/.test(color)) { | |
| document.getElementById("color-text").style.outlineColor = "green"; | |
| update("#" + color); | |
| } else document.getElementById("color-text").style.outlineColor = "red"; | |
| }; | |
| update(localStorage.getItem("color-picker.color") || "#000000"); | |
| </script> | |
| </body> | |
| </html> |
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