web练习（rem布局）

2023-12-21 23:16:02

HTML代码，主要是布局。?

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0" />
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <link rel="stylesheet" href="css/index.css">
    <title>Document</title>
</head>

<body>
    <!-- 顶部搜索框 -->
    <div class="search-content">
        <a href="#" class="classify"></a>
        <div class="search">
            <form action="">
                <input type="search" placeholder="厨卫保暖季 哒哒哒">
            </form>
        </div>
        <a href="#" class="login">登录</a>
    </div>
    <!-- banner部分 -->
    <div class="banner">
        <img src="upload/banner.gif" alt="">
    </div>
    <!-- 广告部分 -->
    <div class="ad">
        <a href="#"><img src="upload/ad1.gif" alt=""></a>
        <a href="#"><img src="upload/ad2.gif" alt=""></a>
        <a href="#"><img src="upload/ad3.gif" alt=""></a>
    </div>
    <!-- nav模块 -->
    <nav>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>
        <a href="#">
            <img src="upload/nav1.png" alt="">
            <span>爆款手机</span>
        </a>

    </nav>
</body>

</html>

css代码，注意font-size的指向对rem单位的影响?

a {
  text-decoration: none;
}
html {
  font-size: 50px;
}
@media screen and (min-width: 320px) {
  html {
    font-size: 21.33333333px;
  }
}
@media screen and (min-width: 360px) {
  html {
    font-size: 24px;
  }
}
@media screen and (min-width: 375px) {
  html {
    font-size: 25px;
  }
}
@media screen and (min-width: 384px) {
  html {
    font-size: 25.6px;
  }
}
@media screen and (min-width: 400px) {
  html {
    font-size: 26.66666667px;
  }
}
@media screen and (min-width: 414px) {
  html {
    font-size: 27.6px;
  }
}
@media screen and (min-width: 424px) {
  html {
    font-size: 28.26666667px;
  }
}
@media screen and (min-width: 480px) {
  html {
    font-size: 32px;
  }
}
@media screen and (min-width: 540px) {
  html {
    font-size: 36px;
  }
}
@media screen and (min-width: 720px) {
  html {
    font-size: 48px;
  }
}
@media screen and (min-width: 750px) {
  html {
    font-size: 50px;
  }
}
body {
  min-width: 320px;
  width: 15rem;
  margin: 0 auto;
  line-height: ?1.5;
  font-family: ?Arial,Helvetica;
  background: ?#F2F2F2;
}
.search-content {
  display: flex;
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 15rem;
  height: 1.76rem;
  background-color: #FFC001;
}
.search-content .classify {
  width: 0.88rem;
  height: 1.4rem;
  margin: 0.22rem 0.5rem 0.14rem 0.48rem;
  background: url(../images/classify.png) no-repeat;
  background-size: 0.88rem 1.4rem;
}
.search-content .search {
  flex: 1;
}
.search-content .search input {
  outline: none;
  width: 100%;
  border: 0;
  height: 1.32rem;
  border-radius: 0.66rem;
  background-color: #FFF2CC;
  margin-top: 0.24rem;
  font-size: 0.5rem;
  padding-left: 1.1rem;
  color: #757575;
}
.search-content .login {
  width: 1.5rem;
  height: 1.4rem;
  line-height: 1.4rem;
  margin: 0.2rem;
  font-size: 0.5rem;
  text-align: center;
  color: #fff;
}
.banner {
  width: 15rem;
  height: 7.36rem;
}
.banner img {
  width: 100%;
  height: 100%;
}
.ad {
  display: flex;
}
.ad a {
  flex: 1;
}
.ad a img {
  width: 100%;
}
nav {
  width: 15rem;
}
nav a {
  float: left;
  width: 3rem;
  height: 2.8rem;
  text-align: center;
}
nav a img {
  display: block;
  width: 1.64rem;
  height: 1.64rem;
  margin: 0.2rem auto 0;
}
nav a span {
  font-size: 0.5rem;
  color: #333;
}

文章来源:https://blog.csdn.net/screamn/article/details/135140614
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