使div变身textarea的属性“contenteditable”
今天在QQ空间的情侣主页中查看arrow的实现效果,无意中发现文本域使用了“contenteditable”属性,使div变成了textarea效果,可以方便解决文本框随着内容自适应高度,contenteditable是HTML5的新属性,而且在IE浏览器中也毫不逊色,不用担心兼容的问题。
CSS代码:
<style type="text/css"> body { margin:0; padding:0; background:#f6f6f6; } .divedit { width:650px; margin:100px auto 0; position:relative; } .textinput { min-height:60px; _height:60px; padding:10px; font-size:12px; color:#a7a7a7; border:1px solid #d9d9d9; outline:0; background:#fff; } .texthover .textinput { border-color:#f5507a; } .texthover .arrowline { border-color:transparent transparent #f5507a transparent; } .arrowbox { width:20px; height:20px; position:absolute; left:52px; top:-9px; } .arrow { width:0; height:0; font-size:0; line-height:0; position:absolute; overflow:hidden; } .arrowline { top:-1px; border-style:dashed dashed solid; border-width:5px; border-color:transparent transparent #d9d9d9 transparent; } .arrowbg { top:0; border-style:dashed dashed solid; border-width:5px; border-color:transparent transparent #fff transparent; } </style>
SCRIPT代码:
<script type="text/javascript"> $(function(){ $(".divedit").hover(function(){ $(this).addClass("texthover"); },function(){ $(this).removeClass("texthover"); }); }); </script>
HTML代码:
<div class="divedit"> <div contenteditable="true" class="textinput">简单的爱,真心的疼,一点温暖,许多安宁,幸福~不过如此!</div> <span class="arrowbox"> <b class="arrow arrowline"></b> <b class="arrow arrowbg"></b> </span> </div>