tryjsref_style_widows 在线代码实例

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<!DOCTYPE html>
<html>
<head>
<script>
function ChangeWidows()
{
document.getElementById("p1").style.widows=document.getElementById("widows").value;
}
</script>
<style>
.othercontent
{
width:400px;
border-top:19cm solid #c3c3c3;
}
@page
{
/* set size of printed page */
size:21cm 27cm;
margin-top:2cm;
}
@media print
{
.widows
  {
  widows:2;
  }
}
</style>
</head>
<body>
<div class="othercontent">
<input id="widows" value="2"/>
<button onclick="ChangeWidows();">Change widows</button>
 
 
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运行结果
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