Jquery 点击按钮自动高亮实现原理及代码_jquery-js教程-

$.extend($.fn, {
hoverEl:function(){

var _this = $(this);
var _t = setTimeout(function(){
_this.attr("hover", "on");
}, 10);
_this.attr("hoverTimeout", _t);

setTimeout(function(){
clearTimeout( _this.attr("hoverTimeout") );
var _t = setTimeout(function(){
_this.removeAttr("hover");
}, 100);
_this.attr("hoverTimeout", _t);
},200);

}
});

li[hover=on]{
background-image:-webkit-gradient(linear, 0% 100%, 0% 0%, from(#194FDB), to(#4286F5))!important;
background-image: -webkit-linear-gradient(top, #4286F5, #194FDB)!important;
color: white!important;
cursor: pointer!important;
}

$(e.target).hoverEl();