::file-selector-button
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2021年4月.
::file-selector-button CSS 伪元素代表 type="file" 的 <input> 的按钮。
尝试一下
input { margin-top: 1rem; } input::file-selector-button { font-weight: bold; color: dodgerblue; padding: 0.5em; border: thin solid grey; border-radius: 3px; } <label for="avatar">Choose a profile picture:</label><br /> <input id="avatar" type="file" name="avatar" accept="image/png, image/jpeg" /> 语法
css
selector::file-selector-button 示例
基本示例
HTML
html
<form> <label for="fileUpload">Upload file</label> <input type="file" id="fileUpload" /> </form> CSS
css
input[type="file"]::file-selector-button { border: 2px solid #6c5ce7; padding: 0.2em 0.4em; border-radius: 0.2em; background-color: #a29bfe; transition: 1s; } input[type="file"]::file-selector-button:hover { background-color: #81ecec; border: 2px solid #00cec9; } 结果
请注意 ::file-selector-button 是一个完整元素，因此与 UA 样式表中的规则相匹配。特别是，字体和颜色不一定会从 input 元素继承。
回退示例
HTML
html
<form> <label for="fileUpload">Upload file</label> <input type="file" id="fileUpload" /> </form> CSS
css
input[type="file"]::file-selector-button { border: 2px solid #6c5ce7; padding: 0.2em 0.4em; border-radius: 0.2em; background-color: #a29bfe; transition: 1s; } input[type="file"]::-ms-browse:hover { background-color: #81ecec; border: 2px solid #00cec9; } input[type="file"]::-webkit-file-upload-button:hover { background-color: #81ecec; border: 2px solid #00cec9; } input[type="file"]::file-selector-button:hover { background-color: #81ecec; border: 2px solid #00cec9; } 结果
规范
| Specification |
|---|
| CSS Pseudo-Elements Module Level 4 # file-selector-button-pseudo |
浏览器兼容性
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