如果您只需要更改背景颜色,这是一种未来可靠的方法 - 在背景图片上使用线性渐变方法!请查看下面的示例:
document
.getElementById('colorpicker')
.addEventListener('change', function(event) {
document
.documentElement
.style.setProperty('--color', event.target.value);
});
span {
display: inline-block;
border-radius: 20px;
height: 40px;
width: 40px;
vertical-align: middle;
}
.red {
background-color: red;
}
.red-darker {
background: linear-gradient(
to top,
rgba(0, 0, 0, 0.25),
rgba(0, 0, 0, 0.25)
) red;
}
:root {
--color: lime;
}
.dynamic-color {
background-color: var(--color);
}
.dynamic-color-darker {
background: linear-gradient(
to top,
rgba(0, 0, 0, 0.25),
rgba(0, 0, 0, 0.25)
) var(--color);
}
<table>
<tr>
<td><strong>Static Color</strong></td>
<td><span class="red"></span></td>
<td><span class="red-darker"></span></td>
</tr>
<tr>
<td><strong>Dynamic Color</strong></td>
<td><span class="dynamic-color"></span></td>
<td><span class="dynamic-color-darker"></span></td>
</tr>
</table>
<br/>
Change the dynamic color: <input id="colorpicker" value="#00ff00" type="color"/>
制作人员: https://css-tricks.com/css-custom-properties-theming/