Correcting teacher:PHPz
Correction status:qualified
Teacher's comments:没什么问题,继续加油
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>媒体查询</title>
<!-- 阿里矢量图 class -->
<link
rel="stylesheet"
href="//at.alicdn.com/t/font_2825039_dkubvn1ci8o.css"
/>
</head>
<body>
<button class="btn small">按键1</button>
<button class="btn middle">按键2</button>
<button class="btn large">按键3</button>
<!-- 演示class矢量图,用font class -->
<!-- 块元素里面放入 iconfont class 才生效 -->
<div class="iconfont class">
<div class="icon-kefuzixunhui"></div>
<div class="icon-zan"></div>
</div>
</body>
<style>
:root {
font-size: 10px;
}
.btn {
background-color: rgb(243, 38, 72);
color: #fff;
border: none;
/* outline: none; */
}
.btn:hover {
/* 移动显示小手 */
cursor: pointer;
/* 透明度 */
opacity: 0.7;
transition: 0.8s;
}
.btn.small {
font-size: 1rem;
}
.btn.middle {
font-size: 1.2rem;
}
.btn.large {
font-size: 1.4rem;
}
/* 小于375px,1rem = 12px */
@media (max-width: 375px) {
:root {
font-size: 12px;
}
}
/* 大于375px切小于415px 1rem = 14px */
@media (max-width: 415px) and (min-width: 375px) {
:root {
font-size: 14px;
}
}
/* 给予大小宽度也可以用font-size来计算 */
.icon-kefuzixunhui {
font-size: 1.5rem;
}
</style>
</html>