js动态设置元素的宽高
实现代码:
var html = document.getElementsByTagName('html')[0];
var dl_second_nav=document.getElementsByClassName("dl-second-nav")[0];
var J_NavContent=document.getElementById("J_NavContent");
html.style.height = 2500+'px';
// alert(dl_second_nav.style.height);
dl_second_nav.style.height=2400+'px';
J_NavContent.style.height=2400+'px';