頭部導航,使點選一個欄目滑動到螢幕中間--多用於移動端
HTML程式碼:
<ul class="tab-head">
<li class="tab-head-item active">心理諮詢師</li>
<li class="tab-head-item">心理學技術與流派</li>
<li class="tab-head-item">學校心理健康</li>
<li class="tab-head-item">大眾心理學</li>
<li class="tab-head-item">考研課程</li>
<li class="tab-head-item">心理學大會</li>
</ul>
CSS程式碼:
.tab-head::-webkit-scrollbar{
display: none;
}
.tab-head{
margin: 0 auto;
list-style-type: none;
display:flex;
flex-wrap:nowrap;
justify-content:space-between;
background: #fff;
padding: 0;
overflow: auto;
height: 46px;
border-bottom: 1px solid #B0B0B0;
position: fixed;
top: 0;
z-index: 9;
}
.tab-head-item{
flex:1 0 auto;
color: #333;
padding: 0 5px;
height: 46px;
line-height: 46px;
}
.active{
color: #c50808;
position: relative;
}
.active:after{ content: "";display: block;height: 3px;width:35px;background: #c50808;position: absolute; bottom: 0;left:0;right:0;margin:auto;border-radius: 10px;}
JS程式碼:
$(".tab-head li").click(function(){
// alert(11)
var moveX = $(this).position().left+$(this).parent().scrollLeft();
var pageX = document.documentElement.clientWidth;//裝置的寬度
var blockWidth = $(this).width();
// console.log(moveX);
// console.log(pageX);
// console.log(blockWidth);
var left = moveX-(pageX/2)+(blockWidth/2);
$(".tab-head").animate({scrollLeft:left},400);
$(this).addClass("active").siblings().removeClass("active");
});