此HTML代码:
<div>
<code>/range/1-3</code><br />
<input type="range" value="0" min="0" max="100" onchange="send('/range/1', parseInt(this.value))" /><br />
<input type="range" value="0" min="0" max="100" onchange="send('/range/2', parseInt(this.value))" /><br />
<input type="range" value="0" min="0" max="100" onchange="send('/range/3', parseInt(this.value))" />
</div>
我想在HTML文件的标题中添加一些CSS来设置某些滑块类的宽度。
这是一个指向整个文件的链接,其中包含3个CSS定义和一个用于将值传入和传出滑块的简短JS。
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8">
<script type="text/javascript" charset="utf-8">
var ws = null
window.addEventListener('load', function() {
if ('WebSocket' in window) {
ws = new WebSocket('ws://localhost:60001')
ws.onmessage = function(e) {
var m = JSON.parse(e.data)
if (m) {
var e = document.getElementById(m[0])
if (e)
e.value = parseInt(m[1] * 100)
}
}
}
})
function send(k, v) {
var m = JSON.stringify([k, v])
if (ws && ws.OPEN)
ws.send(m)
if (console)
console.log(m)
}
</script>
<style type="text/css" media="screen">
div {
margin-bottom: 1em;
}
code {
color: gray;
}
.slider-width {
width: 100px;
}
</style>
</head>
<body>
<div>
<code>/qc/lfo/1</code><br />
<input id="/qc/lfo/1" type="range" />
</div>
<div>
<code>/range/1-3</code><br />
<input class="slider-width" type="range" value="0" min="0" max="100" onchange="send('/range/1', parseInt(this.value))" /><br />
<input class="slider-width" type="range" value="0" min="0" max="100" onchange="send('/range/2', parseInt(this.value))" /><br />
<input class="slider-width" type="range" value="0" min="0" max="100" onchange="send('/range/3', parseInt(this.value))" />
</div>
<div>
<code>/checkbox/1-3</code><br />
<input type="checkbox" onchange="send('/checkbox/1', this.checked)" />
<input type="checkbox" onchange="send('/checkbox/2', this.checked)" />
<input type="checkbox" onchange="send('/checkbox/3', this.checked)" />
</div>
<div>
<code>/radio/1</code><br />
<input type="radio" name="/radio/1" value="1" onchange="send('/radio/1', 1)" />
<input type="radio" name="/radio/1" value="2" onchange="send('/radio/1', 2)" />
<input type="radio" name="/radio/1" value="3" onchange="send('/radio/1', 3)" />
</div>
<div>
<code>/text/1</code><br />
<input type="text" name="/text/1" onkeyup="send(this.name, this.value)" />
</div>
<div>
<code>/select/1</code><br />
<select name="/select/1" onchange="send(this.name, this.value)">
<option value="First">First</option>
<option value="Second">Second</option>
<option value="Third">Third</option>
</select>
</div>
<div>
<code>/button/1</code><br />
<input type="button" name="/button/1" value="button" onmousedown="send(this.name, true)" onmouseup="send(this.name, false)" onmouseout="send(this.name, false)" />
</div>
</body>
</html>
答案 0 :(得分:5)
.slider-width100
{
width: 100px;
}
上面的代码是您应该用于设置宽度样式的宽度定义语法。这将在一个单独的css文件中,该文件应链接到页面中。要使用它,您应该设置标记的class属性,如下所示:
class="slider-width100"
如果您的规则被其他具有更高css优先级的规则覆盖,您可以考虑在您的css规则定义中使用这个丑陋的黑客:
.slider-width100
{
width: 100px !important;
}