利用js改变css里面的display？

Question

.........function cha(){$("#send-form").css('display',''); //为什么不能实现起不了作用}
.....
#send-form { display: none; }#send { display: block; width: 120px; height: 65px; cursor: pointer; background: url(../Images/send.png) no-repeat;}

Answer 1

12$("#div").css("display","none");//修改display属性为none$("#div").css("display","block");//修改display属性为blockjquery的css()方法的用法:1.只需要修改一个css时格式为$(selector).css(name,value)2.设置多个属性的格式为$(selector).css({property:value, property:value, ...})