标签:
HTML:
<input type="text" value="用户名" class="gray" onclick="if(this.value==‘用户名‘){this.value=‘‘;this.className=‘black‘}" onblur="if(this.value==‘‘) {this.value=‘用户名‘;this.className=‘gray‘}" />
CSS:
.black {color:#000;} .gray {color:#b3b3b3;}
标签:
原文地址:http://www.cnblogs.com/helkl/p/4563709.html