基于HTML+CSS编写京东的静态主页(代码+笔记)

 

源码资源链接:

https://download.csdn.net/download/cindy647/10535906

步骤:

1.截图,要一个效果图

2.搭建项目环境,结构样式行为分离

3.引入图片和图标,存储

4.划分结构布局

笔记:

模拟鼠标

 

cursor:pointer;           鼠标变成小手

cursor:move;            鼠标变成四角箭头

cursor:text;             鼠标变成工形插入条光标

cursor:default;           鼠标变成小白

圆角矩形

border-radius: 宽/高一半;

border-radius:50%;

border-radius: 0.3em;

border-radius: 3px3px 8px 4px;

左上角  右上角 右下角  左下

层级

简单概述:谁高。

使用:

一、必须有定位。(除去static)

二、用z-index来控制层级数。

 

 

   层级问题  (谁高)

总结:标准流盒子,低于浮动的盒子,浮动的盒子又低于定位的盒子。

定位高于浮动,浮动高于标准流。(高低和占不占位置无关)

(除去static之外)。

用法:1、必须有定位。(除去static之外)。

      2、给定z-index的值为层级的值。(不给默认为0

(层级为0的盒子,也比标准流和浮动高。)

(层级为负数的盒子,比标准流和浮动低。)

(层级不取小数)

(层级一样,后面的盒子比前面的层级高。)

(浮动或者标准流的盒子,后面的盒子比前面的层级高。)

 

定位中:abso lute是不占位置的,relative是站位的的。而层级的高低,是和占不占位置没有关系的。

 

什么时候用margin和padding(不考虑宽高)

 

1.需要使用背景图的时候必须用padding。

2.会出现外边距合并或者margin塌陷的时候用padding。

3.行内元素上下只能设置padding,不能设置margin。(行内高16px)

4.看border,如果是a连接,看能不能让字体变色,或者显示小手。

5.看需求。

 

 

隐藏盒子问题

1.overflow:hidden;                隐藏盒子超出的部分。

2.display: none;                  隐藏盒子,而且不占位置。(用的最多)

3.visibility: hidden;             隐藏盒子,而且占位置。

4.opacity: 0;                       隐藏盒子,而且占位置。

Position/top/left/...-999px隐藏盒子,而且占位置

半透明

opacity:0.4;   优点方便。缺点:里面的内容也会半透明。

C3的技术来解决半透明:

background: rgba(0,0,0,0.3);

background: rgba(0,0,0, .3);

 

 

 

代码:(很长,自留笔记而已,可以略过)

HTML部分:

 




    
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css部分-base

 

 

 

@charset "UTF-8";
/*css 初始化 */
html, body, ul, li, ol, dl, dd, dt, p, h1, h2, h3, h4, h5, h6, form, fieldset, legend, img {
    margin: 0;
    padding: 0;
}

fieldset, img, input, button {           /*fieldset组合表单中的相关元素*/
    border: none;
    padding: 0;
    margin: 0;
    outline-style: none;
}

ul, ol {
    list-style: none;           /*清除列表风格*/
}

input {
    padding-top: 0;
    padding-bottom: 0;
    font-family: "SimSun", "宋体";
}

select, input {
    vertical-align: middle;
}

select, input, textarea {
    font-size: 12px;
    margin: 0;
}

textarea {
    resize: none;
}

/*防止多行文本框拖动*/
img {
    border: 0;
    vertical-align: middle;
}

/*  去掉图片低测默认的3像素空白缝隙*/
table {
    border-collapse: collapse;       /*合并外边线*/
}


body {
    font: 12px/150% Arial, Verdana, "\5b8b\4f53";  /*宋体,Unicode,统一码*/
    color: #666;
    background: #fff
}

.clearfix:before, .clearfix:after {
    content: "";
    display: table
}

.clearfix:after {
    clear: both;
}

.clearfix {
    *zoom: 1; /*IE/7/6*/
}

a {
    color: #666;
    text-decoration: none;
}

a:hover {
    color: #C81623;
}

h1, h2, h3, h4, h5, h6 {
    text-decoration: none;
    font-weight: normal;
    font-size: 100%;
}

s, i, em {
    font-style: normal;
    text-decoration: none;
}

.col-red {
    color: #C81623 !important;
}

/*公共类*/
.w {
    /*版心 提取 */
    width: 1210px;
    margin: 0 auto;
}

.fl {
    float: left
}

.fr {
    float: right
}

.al {
    text-align: left
}

.ac {
    text-align: center
}

.ar {
    text-align: right
}

.hide {
    display: none
}
/*nav开始*/
.site-nav {
    height: 30px;
    background: #f0f0f0;
    line-height: 30px;
}
.site-nav .fore {
    position: relative;
    padding: 0 25px 0 10px;
}
.site-nav-send {
    position:relative;
    padding:0 25px 0 10px;
    width: 60px;
    height: 30px;
}
.site-nav i{
    position: absolute;
    width: 15px;
    height: 7px;
    top: 12px;
    right: 8px;
    overflow: hidden;
}
.site-nav-send s,.site-nav-r .fore s{
    position: absolute;
    top: -15px;
}
/*var right*/
.site-nav li{
    float: left;
    padding: 0 10px;
}
.site-nav li.shu{
    width: 1px;
    height: 15px;
    background: #ddd;
    padding: 0px;
    margin-top: 9px;
}
.jd-tel {
    position: relative;
}
.site-nav .jd-tel {
    padding-left:25px;
}
.site-nav .fore span {
    position: absolute;
    top: 5px;
    left: 7px;
    width: 15px;
    height: 20px;
    background: url("../images/tel.png") no-repeat;
}
/*nav结束*/
/*top-banner开始*/
.topbanner {
    background-color: #37C2FB;
}
.tb {
    position:relative;
}
.close-banner {
    position:absolute;
    top: 5px;
    right: 5px;
    width: 19px;
    height: 19px;
    background: url("../images/close-banner.png") no-repeat;
}
.close-banner:hover {
    background-position:0 -19px;
}
/*top-banner部分结束*/
/*search部分开始*/
.search-logo {
    float:left;
    width: 362px;
    height: 60px;
    padding: 20px 0;
}
.search-input {
    float: left;
    width: 538px;
    height: 61px;
}
.search-car {
    float:right;
    width: 96px;
    height: 34px;
    margin:25px 65px 0 0;
    border: 1px solid #dfdfdf;
    background-color: #f9f9f9;
    line-height: 34px;
    padding-left: 43px;
    position: relative;
}
.icon1 {
    position: absolute;
    width: 18px;
    height: 16px;
    background: url("../images/tel.png") no-repeat 0 -58px;
    top: 8px;
    left: 18px;
}
.icon2 {
    position: absolute;
    right: 10px;
    top: 0;
    color: #999;
    font:13px/34px "SimSun";
}
.icon3 {
    position: absolute;
    top:-5px;
    width: 16px;
    height: 14px;
    background-color: #C81623;
    line-height: 14px;
    text-align: center;
    color: #ffffff;
    border-radius:7px 0 7px 0;
}
.search-morealink {
    float: left;
    width: 538px;
    height: 28px;
}
.search-logo a {
    display: inline-block;
    width: 270px;
    height: 60px;
    text-indent:-5000px;
    background: url("../images/logo.png") no-repeat;
}
.search-input {
    float: left;
    height: 36px;
    padding: 25px 0 0 0;
}
.search-input input {
    float: left;
    width: 450px;
    height: 32px;
    border: 2px solid #b61d1d;
    padding-left: 4px;
    font: 400 14px/32px "microsoft yahei";
    color:rgb(153,153,153);
    border-right: 0;
}
.search-input button {
    height: 36px;
    width: 82px;
    color: #ffffff;
    font:400 16px/36px "微软雅黑";
    background-color : #B61D1D;
    cursor: pointer;
}
.search-morealink li {
    float: left;
    margin-top: 4px;
}
.search-morealink li a{
    display: inline-block;
    margin: 0 6px;
    color: #000;
}
.search-morealink li a:hover {
    color: #C81623;
}
/*search部分结束*/

/**/
.shortcut-nav {
    height: 44px;
    width: 100%;
    border-bottom: 2px solid  #B61D1D;
}
 .shortcut-nav-menu {
     width: 210px;
     height: 44px;
     float: left;
 }
  .shortcut-nav-items {
      width: 730px;
      height: 44px;
      float: left;
  }
.shortcut-nav-img {
    width: 200px;
    height: 44px;
    float: right;
}
.shortcut-nav-img img {
    height: 39px;
    padding-bottom: 5px;
}
.shortcut-nav-menu-all a {
    display: inline-block;
    width: 210px;
    height: 44px;
    background-color: #b1191a;
    font:400 18px/44px "microsoft yahei";
    color: #ffffff;
    text-align: center;
}
.shortcut-nav-menu-one {
    width: 210px;
    height: 466px;
    margin-top: 2px;
    background-color: #C81623;
    border-left: 1px solid #b1191a;
    border-bottom: 1px solid #b1191a;
    position: absolute;
    z-index: 5;
}
.shortcut-nav-items li{
    float: left;
}
.shortcut-nav-items a {
    display: inline-block;
    height: 44px;
    padding: 0 20px;
    color:#333;
    font: 400 15px/44px "microsolt yahei";
}
.shortcut-nav-items a:hover {
    color:#c81623;
}
.shortcut-nav-menu-one div {
    height: 31px;
    padding: 0 10px;
    color:#fff;
    font:400 14px/31px "microsoft yahei";
}
.shortcut-nav-menu-one h3 {
    float: left;
}
.shortcut-nav-menu-one a {
    color: #ffffff;
}
.shortcut-nav-menu-one div:hover{
    background-color: #ffffff;
}
.shortcut-nav-menu-one div:hover a {
    color:#c81623;
}
.shortcut-nav-menu-one i {
    float: right;
    color: #ffffff;
    font: 400 12px/31px "console";
}
/**/





/*footer部分开始*/
.clearfix:before,.clearfix:after{
    content:"";
    display:table;
}
.clearfix:after{
    clear:both;
}
.clearfix {
    *zoom: 1; /*IE/7/6*/
}
.footer-top-slogen {
    width: 100%;
    height: 94px;
    position: relative;
    background-color: #f5f5f5;
}
.footer-top-slogen-icon {
    position: absolute;
    left:50%;
    top:20px;
}
.footer-top-slogen-icon1 {
    margin-left: -604px;
}
.footer-top-slogen-icon2 {
    margin-left: -302px;
}
.footer-top-slogen-icon4 {
    margin-left: 302px;
}

.footer-top-shopping dl{
    padding-top: 16px;
    float: left;
    width: 200px;
}
.footer-top-shopping dt,.coverage h3{
    height: 34px;
    font:18px/34px "microsoft yahei";
}
.footer-top-shopping dd {
    line-height: 20px;
}
.footer-top-shopping .last-dl {
    width: 100px;
}
.footer-top .coverage {
    float: right;
    width: 186px;
    height: 169px;
    margin-top: 16px;
    background: url("../images/china.png") no-repeat 0 -131px;
    padding:0 50px 0 20px;
}
.footer-top .coverage a {
    float: right;
}
.footer-top .coverage p {
    padding-top: 8px;;
}
.footer-bottom {
    border-top:1px solid #E5E5E5;
    text-align: center;
}
.footer-bottom-links {
    padding-top: 20px;
    padding-bottom: 10px;
    font:12px/18px "microsoft yahei";
}
.footer-bottom-links a {
    margin:0 5px;
    font:12px/18px "microsoft yahei";

}
.footer-bottom-img a {
    margin-right: 5px;
}

css部分-global

 

/*主体部分开始*/
/*主体-中心图开始*/
.main-slider{
    margin:12px 0 0 220px;
    width: 735px;
    height: 454px;
    position: relative;
}

.main-slider img {
    width: 735px;
    height: 454px;
}
.main-slider ul {
    float: left;
    width: 300px;
    height: 30px;
    position: absolute;
    left: 50%;
    margin-left:-150px;
    top:90%;
    z-index: 10;
}
.main-slider li {
    float: left;
    width: 18px;
    height: 18px;
    border-radius:50%;
    color: #ffffff;
    background-color: #333333;
    margin:5px 20px;
    text-align: center ;
}
.main-slider li:hover {
    background-color:#999;
}
.main-slider i {
    position: absolute;
    top:50%;
    margin-top: -25px;
    width: 30px;
    height: 50px;
    text-align: center;
    font:400 30px/50px "microsoft yahei";
    color:rgba(255,255,255,0.1);
    background-color: rgba(153,153,153,0.6);
}
.main-slider i:hover {
    background-color: rgba(153,153,153,0.9);
    color:rgba(255,255,255,0.6);
}
.main-slider .i-left {
    float: left;
    left: 5px;
}
.main-slider .i-right {
    float: right;
    right: 5px;
}
/*sub banner 部分开始 */
.sub-banner {
    position: relative;
}
.sub-banner a{
    position: absolute;
    float: left;
    width: 100%;
    height: 644px;
    background: url("../images/subbanner.jpg") no-repeat center top;
}
/*sub banner 部分结束*/
/*主体-中心图结束*/
/*主体-新闻部分开始*/
.main{
    position: relative;
    z-index: 6;
}
.main-news {
    margin-top: 12px;
    width: 247px;
    height: 454px;
    border: 1px solid #999999;
}
.main-news-top {
    height: 152px;
}
.main-news-top dt,.main-news-top dd{
    padding:0 10px;
}
.main-news-top dt{
    height: 31px;
    border-bottom: 1px solid #999999;
}
.main-news-top i {
    width: 90px;
    font:400 16px/31px "microsoft yahei";
    float: left;
}
.main-news .main-news-top a{
    display: inline-block;
    font:400 12px/31px "microsoft yahei";
    float: right;
    width: 50px;
    height: 31px;
}
.main-news-top dd {
    padding: 5px 0 0 0;
}
.main-news a {
    display: inline-block;
    width: 247px;
    height: 75px;
}

.main-news-cen div{
    float: left;
    width: 61px;
    height: 70px;
    border-right: 1px solid #999999;
    border-top: 1px solid #999999;
    border-bottom: 1px solid #999999;
    text-align:center;
}
.main-news-cen div.div-last {
    border-right: hidden;
}
.main-news-cen div a{
    text-align:center;
    width: 50px;
    height: 20px;
}
.main-news-cen div .fig {
    width: 25px;
    height: 24px;
    overflow: hidden;
    border:none;
    margin: 13px 19px 10px 18px;
}
.main-news-cen div .img1{
    position: relative;
    width: 50px;
    top: 0;
    left: 0;
}
.main-news-cen div .img2{
    position: relative;
    width: 50px;
    top:-25px;
    left: 0;
}
.main-news img {
    width: 247px;
}
/*新闻部分结束*/
/*图标部分开始*/
.today {
    margin:10px auto 20px ;
    position: relative;
}
.today-left {
    float: left;
    margin-right: 1px;
}
.today-left a {
    display: inline-block;
    width: 210px;
    height: 151px;
    background:url("../images/pic1.jpg") ;
}
.today-right {
    float: right;
    position: relative;
}
.today-right li {
    float: left;
    margin-right: 1px;
}
.today-right li img {
    width: 248px;
}
.today-right i {
    position: absolute;
    top:50%;
    margin-top: -25px;
    width: 30px;
    height: 50px;
    text-align: center;
    font:400 30px/50px "microsoft yahei";
    color:rgba(255,255,255,0.1);
    background-color: rgba(153,153,153,0.6);
}
.today-right i:hover {
    background-color: rgba(153,153,153,0.9);
    color:rgba(255,255,255,0.6);
}
.today-right .i-left {
    float: left;
    left: 5px;
}
.today-right .i-right {
    float: right;
    right: 5px;
}

 

 

 

 

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