Js allows you to adjust the font size of a webpage. js allows you to adjust the font size of a webpage.
This document describes how to adjust the font size of a web page in JavaScript. We will share this with you for your reference. The details are as follows:
//var tgs = new Array('div','td','tr');var tgs = new Array('td','tr');//Specify spectrum of different font sizes://var szs = new Array( 'xx-small','x-small','small','medium','large','x-large','xx-large' );var szs = new Array( '10px','12px','14px','16px','18px','20px','22px' );var startSz = 2;function tsize( trgt,inc ) { if (!document.getElementById) { return } var d = document,cEl = null,sz = startSz,i,j,cTags; //sz += inc; sz = inc; if ( sz < 0 ) { sz = 0; } if ( sz > 6 ) { sz = 6; } startSz = sz; if ( !( cEl = d.getElementById( trgt ) ) ) cEl = d.getElementsByTagName( trgt )[ 0 ]; cEl.style.fontSize = szs[ sz ]; for ( i = 0 ; i < tgs.length ; i++ ) { cTags = cEl.getElementsByTagName( tgs[ i ] ); for ( j = 0 ; j < cTags.length ; j++ ) { cTags[ j ].style.fontSize = szs[ sz ]; } }}
Usage:
<td width="13"><a href="javascript:tsize('body',0)"></a></td>