一段css
<body>
<select onchange='document.body.style.zoom=this.options[this.selectedIndex].text+"%"' style='zoom:100%'>
<script>
for(i=0;i<201;i++)document.write("<option>"+i)
</script>
</select>
<img src='images/logo.gif'>
<body>
<select onchange='document.body.style.zoom=this.options[this.selectedIndex].text+"%"' style='zoom:100%'>
<script>
for(i=0;i<201;i++)document.write("<option>"+i)
</script>
</select>
<img src='images/logo.gif'>
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