去掉链接虚线框代码

<a href="#" onfocus="this.blur()">去掉点击链接时出现的虚线</a>

a{ blr:expression(this.onFocus=this.blur());}
:focus { outline:0;}
area{ blr:expression(this.onFocus=this.blur());}

tabindex="0"让div具有聚焦失焦属性