转自 https://www.cnblogs.com/nangezi/p/9157112.html
//点击其他区域，隐藏弹出层
$(document).bind("click", function(){
$(".header .search").css({‘opacity‘:‘0‘,‘visibility‘:‘hidden‘});
$(‘.search-contain #show_header_search‘).removeClass(‘on‘);
})
//给弹出层绑定点击事件，阻止冒泡
$(".header .search").bind("click", function(){
event.stopPropagation();//==========阻止冒泡2
})
原文：https://www.cnblogs.com/qing1304197382/p/12015837.html