目录
outline 用来设置元素的轮廓线,用法和border一模一样
轮廓和边框不同的点,就是轮廓不会影响到可见框的大小
- 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>Documenttitle>
- <style>
- .box{
- width: 200px;
- height: 200px;
- background-color: aqua;
- margin-top: 200px ;
- border: 20px red solid;
- }
- style>
- head>
- <body>
- <div class="box">div>
- <span>hellospan>
- body>
- html>

- 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>Documenttitle>
- <style>
- .box{
- width: 200px;
- height: 200px;
- background-color: aqua;
- margin-top: 2px ;
- outline: 10px red solid;
- }
- style>
- head>
- <body>
- <div class="box">div>
- <span>hellospan>
- body>
- html>

box-shadow用来设置元素的阴影效果,阴影不会影响页面布局
第一个值:水平偏移量 设置阴影的水平位置,正值向右移动 负值向左移动
第二个值:垂直偏移量 设置阴影的水平位置 正值向下移动 负值向上移动
第三个值:阴影的模糊半径
第四个值:阴影的颜色
- 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>Documenttitle>
- <style>
- .box{
- width: 200px;
- height: 200px;
- background-color: aqua;
- margin-top: 2px ;
- border: 10px red solid;
- box-shadow: 0px 0px 50px black;
- }
- style>
- head>
- <body>
- <div class="box">div>
- <span>hellospan>
- body>
- html>

border-radius
border-radius:用来设置圆角,圆角设置的圆的半径大小
border-top-left-radius 左上角
border-top-right-radius 右上角
border-bottom-left-radius 左下角
border-bottom-right-radius 右下角
border-radius 可以分别指定四个角的圆角
四个值:左上 右上 右下 左下
三个值: 左上 右上/左下 右下
两个值 左上/右下 右上/左下
- 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>Documenttitle>
- <style>
- .box{
- width: 200px;
- height: 200px;
- background-color: aqua;
- border-top-left-radius: 20px;
-
-
- }
- style>
- head>
- <body>
- <div class="box">div>
- <span>hellospan>
- body>
- html>

border-radius: 50%
- 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>Documenttitle>
- <style>
- .box{
- width: 200px;
- height: 200px;
- background-color: aqua;
- border-radius: 50%;
-
-
- }
- style>
- head>
- <body>
- <div class="box">div>
- <span>hellospan>
- body>
- html>
