介绍

他是一个弹性的Tab标签

HTML

tab

<!DOCTYPE html>
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no"><title>弹性TAB动画</title><link href="https://cdn.bootcdn.net/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet"><link rel="stylesheet" href="./css/6.css">
</head><body><div class="wrapper"><nav><input type="radio" name="tab" id="home" checked><input type="radio" name="tab" id="comment"><input type="radio" name="tab" id="envelope"><input type="radio" name="tab" id="heart"><input type="radio" name="tab" id="user"><label for="home" class="home" onclick="location.href='#';"><a><i class="fa fa-home" aria-hidden="true"></i>首页</a></label><label for="comment" class="comment" onclick="location.href='#';"><a><i class="fa fa-comment" aria-hidden="true"></i>收藏</a></label><label for="envelope" class="envelope" onclick="location.href='#';"><a><i class="fa fa-envelope" aria-hidden="true"></i>咨询</a></label><label for="heart" class="heart" onclick="location.href='#';"><a><i class="fa fa-heart" aria-hidden="true"></i>列表</a></label><label for="user" class="user" onclick="location.href='#';"><a><i class="fa fa-user" aria-hidden="true"></i>我的</a></label><div class="tab"></div></nav></div>
</body>
</html>```
# css```javascript
*{margin: 0;padding: 0;box-sizing: border-box;
}
body{/* 设置body高度为100%窗口高度 */height: 100vh;/* 弹性盒子布局 水平垂直居中 文字居中 */display: flex;justify-content: center;align-items: center;text-align: center;background: linear-gradient(200deg,#a8edea,#fed6e3);
}
.wrapper{/* 设置宽度为60%窗口宽度 */width: 60vw;height: 60px;line-height: 60px;background-color: #fff;/* 盒子阴影 */box-shadow: 0px 5px 15px rgba(0,0,0,0.25);border-radius: 50px;
}
.wrapper nav{display: flex;position: relative;
}
.wrapper nav label{flex:1;width:100%;position: relative;z-index: 1;cursor: pointer;
}
.wrapper nav label a{position: relative;z-index: -1;color: #333;font-size: 20px;font-weight: 500;text-decoration: none;
}
.wrapper nav label a i{font-size: 25px;margin: 0px 7px;
}
.wrapper nav input{display: none;
}
.wrapper nav .tab{position: absolute;height: 100%;width: 20%;left: 0px;bottom: 0px;/* 渐变背景 自左向右 */background: linear-gradient(to right, #f09819, #ff5858);border-radius: 50px;/* 添加动画过渡 贝塞尔曲线 */transition: 0.6s cubic-bezier(0.68,-0.55,0.265,1.55);
}
.wrapper nav #home:checked ~ label.home a,
.wrapper nav #comment:checked ~ label.comment a,
.wrapper nav #envelope:checked ~ label.envelope a,
.wrapper nav #heart:checked ~ label.heart a,
.wrapper nav #user:checked ~ label.user a{color: #fff;/* 这里字体颜色改变也需要加个动画过渡 */transition: 0.6s;
}
.wrapper nav #comment:checked ~ .tab{left: 20%;
}
.wrapper nav #envelope:checked ~ .tab{left: 40%;
}
.wrapper nav #heart:checked ~ .tab{left: 60%;
}
.wrapper nav #user:checked ~ .tab{left: 80%;
}