HTML5和CSS3扁平化风格博客(基础篇)

多学一点总是好的~

自始至终都觉得的css和html效果比较美观，于是在看慕课网教程时，自己也跟着敲了深爱着的前端代码

这部分分为两部分：①基础篇：http://www.imooc.com/learn/445；

②进阶篇：http://www.imooc.com/learn/598；

这里只对基础篇进行记录，下篇则为进阶篇介绍。

学到的something：

1、CSS的常规布局方法；

2、CSS扁平化风格布局方法；

3、网页布局特殊情况处理方式；

4、HTML5相关标签和CSS3效果。

项目开始：

拿到一个项目，先不要着急动手写代码，而是思考——这是前辈以及自己在工作后，深觉得颇为正确的道理。

1.模块分析：先思考，再动手；

2.重置样式及文件结构（http://cssreset.com/或者normalize.css，但是建议后者，因为前者会将所有标签，包括H1在内的元素样式全部去掉，这点不太合适，故选normalize.css。）

3.宏观布局：

先看最终效果吧：

①布局：

②直接上代码：

index.html:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/reset.css">
    <link rel="stylesheet" href="css/main.css">
    <style>
        /*css样式重置*/

    </style>
</head>
<body>
<div class="main-wrapper">
    <header><!--页头开始-->
        <nav>
            <div class="logo"><a href="">张小窝</a></li></div>
                <ul>
                    <li><a href="" class="active">首页</a></li>
                    <li><a href="">链接3</a></li>
                    <li><a href="">链接4</a></li>
                </ul>
        </nav>
        <div id="banner">
            <div class="inner">
                <h1>张小窝</h1>
                <p class="sub-heading">Lorem ipsum dolor sit amet, .</p>
                <button>了解我</button>
                <div class="more">
                    更多
                </div>
            </div>
        </div>
    </header><!--页头结束-->

    <div class="content"><!--内容开始-->
        <section class="green-section">
            <div class="wrapper">
                <div>
                    <h2>标题</h2>
                    <div class="hr"></div>
                    <p class="sub-heading">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ad aut deserunt dicta dolore exercitationem facere fuga, harum impedit maxime molestiae nemo non nostrum obcaecati pariatur possimus quod similique, vel velit.</p>
                </div>
                <div class="icon-grop">
                    <span class="icon">items1</span>
                    <span class="icon">items2</span>
                    <span class="icon">items3</span>
                </div>
            </div>
        </section>
        <section class="gray-section">
            <div class="article-preview clearfix">
                <div class="text-section">
                    <h2>又一个标题</h2>
                    <div class="sub-heading">我是副标题</div>
                    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus accusantium architecto dolores dolorum, enim eos esse, expedita fugit minus mollitia necessitatibus pariatur qui recusandae sapiente sequi ullam voluptatibus. Quam, rerum!</p>
                </div>
                <div class="img-section">
                    <img src="img/pic01.jpg" alt="">
                </div>
            </div>
            <div class="article-preview clearfix">
                <div class="img-section">
                    <img src="img/pic02.jpg" alt="">
                </div>
                <div class="text-section">
                    <h2>又一个标题</h2>
                    <div class="sub-heading">我是副标题</div>
                    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus accusantium architecto dolores dolorum, enim eos esse, expedita fugit minus mollitia necessitatibus pariatur qui recusandae sapiente sequi ullam voluptatibus. Quam, rerum!</p>
                </div>
            </div>
            <div class="article-preview clearfix">
                <div class="text-section">
                    <h2>又一个标题</h2>
                    <div class="sub-heading">我是副标题</div>
                    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus accusantium architecto dolores dolorum, enim eos esse, expedita fugit minus mollitia necessitatibus pariatur qui recusandae sapiente sequi ullam voluptatibus. Quam, rerum!</p>
                </div>
                <div class="img-section">
                    <img src="img/pic03.jpg" alt="">
                </div>
            </div>
        </section>
        <section class="purple-section">
            <div class="wrapper">
                <div class="heading-wrapper">
                    <h2>又一个标题</h2>
                    <div class="hr"></div>
                    <div class="sub-heading">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Accusamus, iure odit? Alias aliquam corporis cum dignissimos est et expedita nam, non quidem recusandae reiciendis veniam voluptatem. Enim ipsa nihil quibusdam.</div>
                </div>
                <div class="card-group clearfix">
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                    <div class="card">
                        <h3>标题</h3>
                        <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit. Iure laudantium maxime rem ut! Aliquid amet atque corporis delectus distinctio omnis quasi, quibusdam sit? Beatae esse eum saepe voluptate? Repellat, soluta.</p>
                    </div>
                </div>
            </div>
        </section>
    </div><!--内容结束-->

    <footer><!--页脚开始-->
        <ul class="share-group">
            <!--li{item$}-->
            <li>item1</li>
            <li>item2</li>
            <li>item3</li>
            <li>item4</li>
            <li>item5</li>
        </ul>
        <div class="copy">
            &copy;张小窝 - 2017
        </div>
    </footer><!--页脚结束-->
</div>

</body>
</html>

main.css：

/*清除父级影响---清除浮动*/

.clearfix:after { content: ''; display: block; clear: both; }


ul {
    margin: 0;
}
nav {
    background-color: transparent;
    height: 50px;
}
a {
    text-decoration: none;
}

header {
    background-color: rgba(0,0,0,0.4);
}
#banner {
    background-color: rgba(0,0,0,0.2);
    height: 700px;
}

nav ul {
    list-style: none;
    margin:0;
    float: right;
}
nav ul li,nav .logo {
    display: inline-block;
    line-height: 50px;
    margin-right: 20px;
}

nav ul li a {
    line-height: 50px;
    text-decoration: none;
    display: inline-block;
    /*继承*/
    height: inherit;
    color: #fff;
}

nav ul li.logo {
    float: left;
    padding: 10px;
}

#banner .inner {
    max-width: 300px;
    text-align: center;
    margin: 0 auto;
    position: relative;
    top:160px;
}
#banner .inner h1{
    margin: 0;
}

/*常规button*/
button {
    border: none;
    background-color: #333;
    color: #eee;
    padding: 10px;
    border-radius: 5px;
}
#banner button {
    padding: 14px 60px;
}

#banner .inner .more {
    margin-top: 280px;
    color: #fff;
    font-size: 12px;
}

.sub-heading{
    line-height: 30px;
    margin: 30px 0;
    /*font-size: 18px;*/
}

/*导航栏样式*/
.logo {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 1px;
}

.logo a{
    color: #fff;
}
/*内容*/

h1 {
    padding: 12px;
    border-top: 2px solid #fff;
    border-bottom: 2px solid #fff;
}

h2{
    font-size: 30px;
}

h3 {
    font-size: 24px;
}

p {
    font-size: 18px;
    letter-spacing: 1px;
}
.hr{
    width: 100px;
    height: 2px;
    margin: 20px auto;
}
.green-section {
    background-color: #089DB0;
    text-align: center;
    color: #fff;
    padding: 100px 0;
}
.green-section .hr {
    background-color: #028e94;
    width: 60%;
}

.green-section .icon-grop .icon{
    display: inline-block;width: 80px;
    height: 80px;
    /*background-color: #0D6F74;*/
    border: 1px solid #0D6F74;
    transform: rotate(45deg);
    margin: 20px;
}
.icon-grop {
    margin-top: 60px;
}
.wrapper {
    max-width: 1080px;
    margin: 0 auto;
}
/*灰色区域*/
.gray-section {
    background-color: #252F34;
}
.gray-section .img-section{
    width: 45%;
}
.img-section img {
    width: 100%
}

.gray-section .text-section{
    width: 55%;
}
.article-preview > div {
    float: left;
    /*两图之间的缝隙（小细节）*/
    font-size: 0;
}

.article-preview:nth-child(odd){
    background-color:rgba(255,25,255,0.05);
}

.text-section{
   position: relative;
    top:68px;
    left:50px;
}

.text-section > * {
    max-width: 90%;
    color: #fff;
}
.text-section h2    {
    margin-bottom: 20px;
}

.text-section .sub-heading {
    font-size: 22px;
}
.text-section p {
    font-size: 18px;
    letter-spacing: 1px;
}

/*紫色部分*/
.purple-section {
    padding: 80px;
    background-color: #3F3965;
    color: #fff;
}
.purple-section .heading-wrapper {
    text-align: center;
}

.purple-section .hr {
    background: #373259;
    width: 60%;
}
.card{
    float: left;
    width: 50%;
    min-height: 300px;
    padding: 50px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    /*border:1px solid #fff;*/
}
.card:first-child{
    /*不透明度为0.05的黑*/
    background

: rgba(0,0,0,0.04);

}
.card:nth-child(2){
    background: rgba(0,0,0,0.08);
}
.card:nth-child(3){
    background: rgba(0,0,0,0.12);
}
.card:nth-child(4){
    background: rgba(0,0,0,0.16);
}
.card:nth-child(5){
    background: rgba(0,0,0,0.20);
}
.card:nth-child(6){
    background: rgba(0,0,0,0.24);
}
/*页脚*/
footer{
    background: #333;
    color: #fff;
    min-height: 200px;
    text-align: center;
}
ul.share-group {
    display: block;
    width: 1080px;
    margin: 0 auto;
    padding: 50px;
}
.share-group li {
    display: inline-block;
    padding: 10px;
}
.copy{
    padding: 20px;
}
.main-wrapper {
    background: #444 url(../img/banner.jpg);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

兴趣真的是位好老师~

其实css以及html方面的知识比较简单，只是过程比较“曲折”，如果有足够的兴趣，花点时间也是可以达到满意的效果的。

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原文地址：https://www.cnblogs.com/zhengyeye/p/7417739.html