::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
Loading…