js实现select选择框效果及美化

 
 投资种类
 
期货
股票
期权
 投资类型
 
趋势
震荡
套利
选股
择时

 ul li{ list-style: none; } .test { position: relative; float: left; width: 120px; height: 40px; padding-left: 11px; font-size: 15px; line-height: 40px; cursor: pointer; border: 1px solid #d2d2d2; border-radius: 3px; margin-right: 20px; outline: none; } .test:before { position: absolute; right: 13px; top: 18px; width: 0; height: 0; content: ""; border-width: 8px 8px 0 8px; border-style: solid; border-color: #d36969 transparent; -webkit-transition: transform .25s; -moz-transition: transform .25s; -ms-transition: transform .25s; -o-transition: transform .25s; transition: transform .25s; } .test:after { position: absolute; right: 15px; top: 18px; width: 0; height: 0; content: ""; border-width: 6px 6px 0 6px; border-style: solid; border-color: #fff transparent; -webkit-transition: all .25s; -moz-transition: all .25s; -ms-transition: all .25s; -o-transition: all .25s; transition: all .25s; } .test.active:before{ -webkit-transform: rotate(180deg); -moz-transform: rotate(180deg); -ms-transform: rotate(180deg); -o-transform: rotate(180deg); transform: rotate(180deg); } .test.active:after{ top: 20px; -webkit-transform: rotate(180deg); -moz-transform: rotate(180deg); -ms-transform: rotate(180deg); -o-transform: rotate(180deg); transform: rotate(180deg); } .test .dropdown { position: absolute; right: 0; left: 0; display: none; padding: 0; border-radius: inherit; border: 1px solid #d2d2d2; box-shadow: 2px 2px 5px rgba(0,0,0,.4); } .test.active .dropdown { display: block; } .test .dropdown:before { position: absolute; right: 13px; bottom: 100%; width: 0; height: 0; content: ""; border-width: 0 8px 8px 8px; border-style: solid; border-color: #d2d2d2 transparent; } .test .dropdown:after { position: absolute; right: 15px; bottom: 100%; width: 0; height: 0; content: ""; border-width: 0 6px 6px 6px; border-style: solid; border-color: #fff transparent; } .test .dropdown li { float: left; width: 129px; font-size: 14px; -webkit-transition: all .3s ease-out; -moz-transition: all .3s ease-out; -ms-transition: all .3s ease-out; -o-transition: all .3s ease-out; transition: all .3s ease-out; text-align: center; } .test .dropdown li:first-of-type { border-radius: 3px 3px 0 0; } .test .dropdown li:last-of-type { border-radius: 0 0 3px 3px; } .test .dropdown li:hover { color: #fff; background: #c43c3d; } 

 function DropDown(el) { this.dd = el; this.span = this.dd.children('span'); this.li = this.dd.find('ul.dropdown li'); this.val = ''; } DropDown.prototype.initEvents = function() { var obj = this; obj.dd.on('click', function(event){ $(this).toggleClass('active').siblings().removeClass('active'); event.stopPropagation(); }); obj.li.on('click', function() { var opt = $(this); obj.val = opt.html(); if (obj.span.html() == obj.val) return; obj.span.html(obj.val); $(document).click(function() { $('.test').removeClass('active'); }); }) } var test1 = new DropDown($('#type')); var test2 = new DropDown($('#kind')); test1.initEvents(); test2.initEvents()