css样式属性 使用汇总，补齐前端短板

---------------index.css 常用网站css样式属性 使用汇总1-------------
/* 先删除默认的内外边距 */
* {
    margin: 0;
    padding: 0;
}
body {
    background-color: #fafafa;
    height: 2000px;
}
li {
    list-style: none;   /* 取消li的符号 */
}
/* 顶部导航栏开始 */
.header {
    height: 100px;
    background-color: #fff;
}
.header-inner {
    width: 1200px;
    height: 100px;
    margin: 0 auto;
    /* background-color: pink; */
    line-height: 100px;     /* 行高会继承 */
}
.logo {
    float: left;
    height: 100px;
    overflow: hidden; /* 图片溢出被隐藏*/
}
.logo img {
    height: 100px;
}
.nav {
    float: right;
}
.nav li {
    float: left;
    margin: 0 20px;

}
.nav li a {
    color: #333;
    text-decoration: none;
}
.nav li a:hover {
    color: #2288f6;
}
/* banner 开始 */
.banner {
    height: 620px;
    background: url(../images/banner3.jpg) no-repeat;
	width: 1160px;
	 margin: 0 auto;
}
/* service 开始 */
.service {
    width: 1050px;
    height: 660px;
    /* background-color: pink; */
    margin: 100px auto 0;
}
.service-hd {
    border-top: 1px solid #ccc;
    margin: 0 25px;

}
.service-hd h3 {
    width: 158px;
    height: 55px;
    margin: -20px auto 0;
}
.service-hd p {
    font-size: 14px;
    color: #484848;
    text-align: center;
    width: 830px;
    line-height: 28px;
    margin: 15px auto 0;
}
.service-bd {
    margin-top: 40px;
}
.service-bd li {
    width: 318px;
    height: 510px;
    background-color: #fff;
    float: left;
    border: 1px solid #ccc;
    border-radius: 3px;
}
.service-bd img {
    margin: 40px 35px;
    width: 248px;
    height: 132px;
}
.service-bd h3 {
    text-align: center;
    color: #333;
    font-weight: 400;
    height: 40px;
    font-size: 18px;
}
.service-bd p {
    color: #666;
    font-size: 14px;
    width:238px;
    line-height: 26px;
    margin: 0 auto;
}
.service-bd a {
    width: 148px;
    height: 38px;
    border: 1px solid #ff9421;
    display: block;
    text-align: center;
    line-height: 38px;
    font-size: 14px;
    border-radius: 7px;
    margin: 30px auto 0;
    text-decoration: none;
    color: #ff9421;
}
.service-bd a:hover {
    background-color: #ff9421;
    color: #fff;
}
.yingxiao {
    margin: 0 45px;
}

---------------index2.css 常用网站css样式属性 使用汇总2-------------
/* 设置页面整体外边距，内边距为0 */
*{
     margin: 0;
     padding: 0;
    }
    /* 整体页面背景为白色 */
    body{
     background-color: #fafafa;
    }
    /* 顶部样式设置 */
    .header{
     width: 1200px;
     height: 100px;
     /* background-color: red; */
     margin: 0 auto;
     line-height: 100px;
     
    }
    .logon{
     float: left;
     height: 100px;
     overflow: hidden;
    }
    .logon img{
     height: 100px;
     width: 300px;
    }
    .nav{
     float: right;
    }
    ul li{
     list-style: none;
    }
    .nav ul li{
     float: left;
     margin: 0 20px;
     font-size: 18px;
     font-weight: bold;
    }
    .nav li a{
     color: #333;
     text-decoration: none;
    }
    .nav li a:hover {
        color: #e9900a;
    }
    
    /* banner 样式开始  */
    .banner-img {
     background: url("../images2/banner3.jpg") no-repeat;
     height: 500px;
     width: 1200px;
     margin: 0 auto;
     line-height: 500px;     /* 行高会继承 */
    }
    
    .service {
     width: 1000px;
     height: 570px;
     margin:70px auto 0;
     text-align: center;
    }
    .service-text {
     border-top: 1px solid #ccc;
    }
    .service-text h3 {             # 将文本提到div 上边线上 覆盖
     background-color: #fff;
     width: 170px;
     margin: -20px auto 0;
    }
    .service-hd{
     border-top: 1px solid #ccc;
    }
    .service-hd h3{
     margin-top: -20px;
    }
    .service-hd h4 {
     color: #ccc;
    }
    .service-hd p {
     margin: 20px 0;
     line-height: 30px;
    }
    
    /* 服务内容样式 */
    .service-bd {
     margin-top: 10px;
    }
    .service-bd ul li{
     float: left;
     width: 240px;
     border: 1px solid #ccc;
     background-color: #fff;
     padding: 40px 30px;
    }
    .service-bd li {
     width: 330px;
     background-color: #fff;
     float: left;
     border: 1px solid #ccc;
 }

    .service-bd li img {
    height: 130px;
    }
    .service-bd li h3 {
     font-weight: 700;
     margin: 25px 0;
    }
    .service-bd li p {
     color: #666;
     line-height: 26px;
     padding: 10px 40px;
    }
    .service-bd li a {
     border: 1px solid #ff9421;
     color: #ff9421;
     border-radius: 7px;
     text-decoration: none;
     padding: 10px 25px;
     display: block;
     margin-top: 10px;
    
     /* a 行级元素转快 设置宽，高 = padding: 10px 40 px */
     /* display: block;
     width: 160px;
     height: 40px;
     line-height: 40px; */
    }
    .service-bd li a:hover {
     color: #fff;
     background-color: #ff9421;
    }
    /* 给li添加左右外边距 */
    .text-margin {
     margin: 0 40px;
    }

    /* 我的产品 */
    .products {
     width: 1000px;
     height: 530px;
     margin:20px auto 0;
     text-align: center;
    }
      /* 我的产品 2*/
      .products2 {
        width: 1000px;
        height: 530px;
        margin:50px auto 0;
        text-align: center;
       }

    /* 底部样式 */
    .bottom {
     width: 1200px;
     margin: 10px auto;
     /* background: #333; */
     /* background-color:#c9c2c2; */
     background-color: #fff;
     height: 150px;
     color: black;
     border-radius: 5px;
     border: 1px solid #ccc;
    }
    .leftlink {
     float: left;
     padding-left: 10px;
     width:750px;
    }
    .leftlink ul {
     margin: 0 10px;
    }
    .leftlink li {
     margin: 10px 40px;
     float: left;
    }
    .leftlink h4 {
     font-weight: 700;
     margin: 15px auto;
    }
    .leftlink li a{
     text-decoration: none;
     color: #0a0a0a;
     display: block;
     padding: 1px 0px;

    }
    .leftlink li a:hover {
     color: #e9900a;
    }

    .rightIcon {
     float: left;
     margin-left: 10px;

     width: 370px;
    }
    .rightIcon ul {
     border: 0px solid #ccc;
     background-color: #fff;
     padding: 20px auto;
     
    }
    .rightIcon li{
     float: left;
     padding: 20px 10px;
     text-decoration: none;
    }
    .rightIcon li img{
     width: 130px;
     height: 85px;
     margin-top: 10px;
    }
    .rightIcon h4 {
     font-weight: 700;
     padding-left: 12px;
    }