textarea自动高度
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <TITLE>textarea宽度、高度自动适应处理方法</TITLE> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <!--/* <meta name="Generator" content="EditPlus"> <meta name="Author" content=""> <meta name="Keywords" content=""> <meta name="Description" content="">*/--> <!-- 控制宽度的自动适应 --> <style type="text/css"> .comments { width:100%;/*自动适应父布局宽度*/ overflow:auto; word-break:break-all;/*在ie中解决断行问题(防止自动变为在一行显示,主要解决ie兼容问题,ie8中当设宽度为100%时,文本域类容超过一行时,当我们双击文本内容就会自动变为一行显示,所以只能用ie的专有断行属性"word-break或word-wrap"控制其断行)*/ } .t_global { width:100%; } .t_left { width:80px; background-color: #CCC; } </style> </HEAD> <BODY> <table class="t_global"> <tr> <td class="t_left">审核意见:</td> <td> <FORM METHOD=POST ACTION= " "> <!-- 第一个是普通textarea --> <textarea class="comments" rows="4" cols="10"> </textarea> </FORM> </td> </tr> <tr> <td class="t_left">审核意见:</td> <td> <FORM METHOD=POST ACTION= " "> <!-- textarea行高自动适应类容的高度2 --> <textarea class="comments" rows=4 name=s1 cols=27 onpropertychange= "this.style.posHeight=this.scrollHeight "></textarea> </FORM> </td> </tr> <tr> <td class="t_left">审核意见:</td> <td> <FORM METHOD=POST ACTION= " "> <!-- textarea行高自动适应类容的高度3 --> <textarea class="comments" style="height:expression((this.scrollHeight>150)?'150px':(this.scrollHeight+5)+'px');overflow:auto;"></textarea> </FORM> </td> </tr> </table> <textarea class="comments" style="height:expression((this.scrollHeight>150)?'150px':(this.scrollHeight+5)+'px');overflow:auto;"></textarea> </BODY> </HTML>