Controlling Font Size With Javascript 兼容主流浏览器

geovindu

发布于 2026-06-18 12:50:26

1540

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
<meta content="text/html; charset=utf-8" http-equiv="Content-Type" />
<title>Controlling Font Size With Javascript 兼容主流浏览器</title>
<meta name="author" content="Geovin Du 涂聚文"/>
<script type="text/javascript">
var min=8;
var max=18;
function increaseFontSize() {
 
   var p = document.getElementsByTagName('div'); //
   //var p=document.getElementById("geovindu");//
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=max) {
 
         s += 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
}
function decreaseFontSize() {
   var p = document.getElementsByTagName('div'); //
   //var p=document.getElementById("geovindu");//
   for(i=0;i<p.length;i++) {
 
      if(p[i].style.fontSize) {
         var s = parseInt(p[i].style.fontSize.replace("px",""));
      } else {
 
         var s = 12;
      }
      if(s!=min) {
 
         s -= 1;
      }
      p[i].style.fontSize = s+"px"
 
   }
}
</script>
</head>

<body>
<a href="javascript:decreaseFontSize();">-</a> 
<a href="javascript:increaseFontSize();">+</a>
<div id="geovindu">

 FDKSAJ gesdfs Geovin Du 
</div></body></html>

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原始发表：2026-06-17，如有侵权请联系 cloudcommunity@tencent.com 删除

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