最简单的Tab切换

article/2025/9/1 6:35:29

HTML

<div class="main"><div class="btn"><!-- Tab标题 --><span class="active spanList">课程介绍</span><span class="spanList">用户故事</span><span class="spanList">常见问题</span><span class="spanList">电影列表</span></div><div class="context"><!-- Tab内容 --><div class="con"> 第一个<br/></div><div class="con">第二个<br /> </div><div class="con">第三个<br /> </div><div class="con">第四个<br /> </div></div></div>关注我的微信公众号【前端基础教程从0开始】，加我微信，可以免费为您解答问题。回复“1”，拉你进程序员技术讨论群。回复“小程序”，领取300个优秀的小程序开源代码+一套入门教程。回复“领取资源”，领取300G前端，Java，微信小程序，Python等资源，让我们一起学前端。

CSS

.main {width: 100%;/* background-color: green; */
}
.btn{ width: 100%;height: 1.2rem;display: flex;justify-content: space-around;box-shadow: 0 0.04rem 0 rgba(0,55,88,.1);  
}
.spanList{ font-family: PingFang-SC-Medium;font-size: 0.30rem;color: #3f3f3f; text-align: center;line-height: 1.2rem;display:inline-block;position: relative;letter-spacing: 0.005rem;font-weight: 400;
}
.active{font-family: PingFang-SC-Bold;font-size: 0.48rem;font-weight: 600;color: #3f3f3f; text-align: center;line-height: 1.2rem;letter-spacing: 0.005rem;display:inline-block;
}
.active::after{position: absolute;left: 0.48rem;top: 1rem;content:""; width: 0.8rem;height: 0.08rem;background-color: #0FA2F9;border-radius: 0.04rem;
}
.context{width: 100%;float: left;
}
.con { display:none; width: 7.5rem;margin-top: 0.8rem;
}

JS切换(首先要引入jquery)

$(".con").eq(0).show();
$(".btn span").click(function(){var num =$(".btn span").index(this);$(".con").hide();$(".con").eq(num).show();$(this).attr("class","active spanList");$(this).siblings().attr("class","spanList");
})