- <!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>Document</title>
- <style>
- .box {
- height: 40px;
- border-top: 3px solid #ff8500;
- border-bottom: 1px solid #edeef0;
- }
-
- /* 后代: box里面的a */
- .box a {
- width: 80px;
- height: 40px;
- /* 推荐先加上: 清楚的看到文字在什么位置 */
- /* background-color: #edeef0; */
- display: inline-block;
- text-align: center;
- line-height: 40px;
- font-size: 12px;
- color: #4c4c4c;
- text-decoration: none;
- }
-
- .box a:hover {
- background-color: #edeef0;
- color: #ff8400;
- }
- </style>
-
- <!-- 从外到内 : 先宽高背景色, 放内容, 调节内容的位置; 控制文字细节 -->
- </head>
- <body>
- <div class="box">
- <a href="#">新浪导航</a>
- <a href="#">新浪导航</a>
- <a href="#">新浪导航</a>
- <a href="#">新浪导航</a>
- </div>
- <p>
- <a href="#"></a>
- </p>
- </body>
- </html>
-
- 如果子盒子没有设置宽度,此时宽度默认是父盒子的宽度
- 此时给子盒子设置左右的padding或者左右的border,此时不会撑大子盒子
- <!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>Document</title>
- <style>
- div {
- width: 100px;
- height: 100px;
- background-color: pink;
- border: 10px solid #000;
- padding: 20px;
-
- /* 內减模式 */
- /* 变成CSS3的盒子模型, 好处: 加了border和padding不需要手动减法 */
- box-sizing: border-box;
- }
- </style>
- </head>
- <body>
- <div>文字</div>
- </body>
- </html>
-
- <!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>Document</title>
- <style>
- * {
- margin: 0;
- padding: 0;
- }
- </style>
- </head>
- <body>
- <p>pppp</p>
- <p>pppp</p>
- <h1>h1</h1>
- <ul>
- <li>lili</li>
- </ul>
- </body>
- </html>
-
- <!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>Document</title>
- <style>
- * {
- margin: 0;
- padding: 0;
- /* 所有的标签都可能添加内边距或border, 都內减模式,宽高固定 */
- box-sizing: border-box;
- }
-
- .news {
- width: 500px;
- height: 400px;
- border: 1px solid #ccc;
- margin: 50px auto;
- padding: 42px 30px 0;
- }
-
- .news h2 {
- border-bottom: 1px solid #ccc;
- font-size: 30px;
-
- /* 行高是1倍, 就是字号的大小 */
- line-height: 1;
- padding-bottom: 9px;
- }
-
- /* 去掉列表的符号 */
- ul {
- list-style: none;
- }
-
- /* li {} */
- .news li {
- height: 50px;
- border-bottom: 1px dashed #ccc;
- padding-left: 28px;
- line-height: 50px;
- }
-
- .news a {
- text-decoration: none;
- color: #666;
- font-size: 18px;
- }
- </style>
- </head>
- <body>
- <!-- 从外到内 -->
- <div class="news">
- <h2>最新文章/New Articles</h2>
- <ul>
- <li><a href="#">北京招聘网页设计,平面设计,php</a></li>
- <li><a href="#">北京招聘网页设计,平面设计,php</a></li>
- <li><a href="#">北京招聘网页设计,平面设计,php</a></li>
- <li><a href="#">北京招聘网页设计,平面设计,php</a></li>
- <li><a href="#">北京招聘网页设计,平面设计,php</a></li>
- </ul>
- </div>
- </body>
- </html>
-
- <!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>Document</title>
- <style>
- div {
- width: 100px;
- height: 100px;
- background-color: pink;
- }
-
- .one {
- /* margin-bottom: 50px; */
- margin-bottom: 60px;
- }
-
- .two {
- margin-top: 50px;
- }
- </style>
- </head>
- <body>
- <div class="one">11</div>
- <div class="two">22</div>
- </body>
- </html>
-
- <!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>Document</title>
- <style>
- .father {
- width: 300px;
- height: 300px;
- background-color: pink;
- /*方式1:给父元素设置border-top 或者 padding-top(分隔父子元素的margin-top),如果设计稿没有border, 不能使用这个解决办法*/
- /* padding-top: 50px; */
- /* border: 1px solid #000; */
-
- /*方式2:给父元素设置overflow:hidden*/
- overflow: hidden;
- }
-
- .son {
- width: 100px;
- height: 100px;
- background-color: skyblue;
-
- margin-top: 50px;
-
- /*方式3:设置成行内块元素*/
- /*display: inline-block;*/
- }
- </style>
- </head>
- <body>
- <div class="father">
- <div class="son">son</div>
- </div>
- </body>
- </html>
-
可以使用line-height设置行高。
- <!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>Document</title>
- <style>
- span {
- /* margin: 100px; */
- /* padding: 100px; */
- line-height: 100px;
- }
-
- </style>
- </head>
- <body>
- <!-- 行内元素 内外边距 margin padding -->
-
- <!-- 如果想要通过margin或padding改变行内标签的垂直位置, 无法生效 -->
- <!-- 行内标签的margin-top和bottom 不生效 -->
- <!-- 行内标签的padding-top或botttom 不生效 -->
- <span>span</span>
- <span>span</span>
- </body>
- </html>
-