文字放大缩小
下面为效果显示
▲
12px
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脚本说明: 把如下代码加入<body>区域中 <script language="JavaScript"> <!-- function MM_reloadPage(init) { //reloads the window if Nav4 resized if (init==true) with (navigator) {if ((appName=="Netscape")&&(parseInt(appVersion)==4)) { document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }} else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload(); } MM_reloadPage(true); var fsize=12; var dx; var n; function changesize(c) { if (c==1) { if (fsize>0) {fsize--;} else {} } else {fsize++;} fonts.innerHTML = fsize + 'px'; content.style.fontSize=fsize; } function dragslide() { if (n==1) { var x=document.body.scrollLeft+event.clientX; if ((x-dx)<102&&(x-dx)>0) { handle.style.left=x-dx; fsize=x-dx+11; } else if ((x-dx)>101) { handle.style.left=101; fsize=112; } else if ((x-dx)<1) { handle.style.left=1; fsize=12; } fonts.innerHTML = fsize + 'px'; content.style.fontSize=fsize; } } function dragstart() { n=1; dx=document.body.scrollLeft+event.clientX-handle.offsetLeft; handle.setCapture(); } function dragend() { n=0; handle.releaseCapture(); } //--> </script> <style type="text/css"> <!-- .button { height: 14px; width: 14px; font-size: 12px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; padding-top: 0px; padding-right: 0px; padding-bottom: 0px; padding-left: 0px; line-height: 10px} .border { border-color: #000000 black; border-style: solid; border-top-width: 1px; border-right-width: 0px; border-bottom-width: 1px; border-left-width: 0px} .shadow { filter: DropShadow(Color=#000000, OffX=2, OffY=1, Positive=1)} --> </style> <table width="500" border="0" cellspacing="0" cellpadding="0"> <tr> <td width="14" height="14"> <input type="button" name="Button" value="-" onClick=changesize(1) class="button" onfocus="this.blur()"> </td> <td width="112"> <div id="bar" style="font-size:5px;position:relative; width:112px; height:11px; z-index:1; background-color: #D4D0C8; layer-background-color: #D4D0C8; border: 1px none #000000; left: 0px; top: 3px ; " > <div id="handle" style="font-size:12px;color:#CDC9C0;cursor: w-resize;position:absolute; width:8px; height:9px; z-index:1; top: 6px; left: 1px" class="shadow" onmousedown="dragstart()" onmousemove="dragslide()" onmouseup="dragend()">▲</div> </div> </td> <td width="14"> <input type="button" name="Submit2" value="+" onClick=changesize(2) class="button" onfocus="this.blur()"> </td> <td valign="bottom"><span id="fonts" style="font-size:12px;">12px</span></td> </tr> </table> <br> <table width="500" border="0" cellspacing="0" cellpadding="0"> <tr> <td id="content" style="font-size:12px">欢迎7stk.com</td> </tr> </table>