jquery搜索框点击下拉，不选择鼠标移开自动隐藏

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/boyit0/article/details/84453961

<!--样式-->
<style type="text/css">
.search{ height: 48px; background: #fff; margin-bottom: 21px;}
.sosleft{ float: left; width: 828px; border: solid 1px #fff; height: 46px; }
.sosleft input{ float: left;padding:12px 10px; width: 678px; font-size: 14px;}
.sosleft.hover{ border-color: #004e98;  }
.sosleft .sosul{ float: right; width: 128px; height: 30px; margin: 10px 0 0 0; border-left: solid 1px #eee; position: relative; z-index: 1;}
.sosleft .sosul a.sname{display: block; font-size: 14px; padding:0 0 0 30px;}
.sosleft .sosul a.sname>i{ font-size: 20px; margin-left: 20px; vertical-align:middle; }
.sosleft .sosul span{height:46px; width:128px; display:block; position:absolute; left:0; top:-10px; cursor:pointer;}
.sosleft .sosul ul{ display: none; width: 128px; background: #fff; position: absolute; top: 37px; left: 0;-moz-box-shadow: 0px 5px 8px rgba(0,78,152,0.1);
    -webkit-box-shadow: 0px 5px 8px rgba(0,78,152,0.1);
    box-shadow: 0px 5px 8px rgba(0,78,152,0.1); -webkit-animation: fadein .2s linear;
    animation: fadein .2s linear;}
.sosleft .sosul ul li{ padding: 10px 0 10px 30px; font-size: 14px; color: #999; cursor: pointer; transition:all .3s;}
.sosleft .sosul ul li:hover,.sosleft .sosul ul li.active{ background: #f7f9fb; color: #333;}

.search button{ float: right; background: #004e98; width: 130px; height: 48px; font-size: 16px; border:none; line-height: 48px; text-align: center; color: #fff; }
.search button:hover{background-color: #01478a;}
</style>
<!--结构-->
<div class="search">
				<div class="sosleft">
					<input type="text" name="" placeholder="搜索关键词、概念或话题"/>
					<div class="sosul">
						<a class="sname" href="javascript://"><em>话题</em> <i class="iconfont icon-xiaosanjiaodown"></i></a>
	                    <ul class="subnav">
	                        <li>话题</li>
							<li>概念</li>
							<li>百科</li>
	                    </ul>
	                    <span></span>
					</div>
				</div>
				<button type="button">搜索</button>
			</div>

<script type="text/javascript">
//下拉框
			$(".sosul span").click(function() { 
				$(this).parent().find("ul.subnav").show(); 
				$(this).parent().hover(function() {					
				}, function(){	
					$(this).parent().find("ul.subnav").hide();
				})			
			});

			$(".sosul ul.subnav li").click(function(){
				$(".sosul a.sname>em").html($(this).text());
				$(".sosul ul.subnav").hide(); 
				$(this).siblings('li').removeClass('active');  
        		$(this).addClass('active');			
			});

			$(".sosleft input").focus(function() { //搜索
		        $(this).parent().addClass('hover');
		    }).blur(function() {
		        $(this).parent().removeClass('hover');
		    });
</script>