css3背景图像相关

兼容性:IE9+

background-clip 背景图片绘制区域

background-clip:border-box; 内容区

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p3.jpg) center;
        padding:50px;
        border:50px solid transparent;
        background-clip:content-box;
        /*background-clip:padding-box;*/
        /*background-clip:border-box;*/
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

background-clip:padding-box; padding区域

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p3.jpg) center;
        padding:50px;
        border:50px solid transparent;
        background-clip:padding-box;
        /*background-clip:border-box;*/
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

background-clip:border-box; border区域

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p3.jpg) 50px 50px no-repeat;
        padding:50px;
        border:50px solid transparent;
        background-origin:border-box;
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

background-origin: content-box | padding-box | border-box; 背景图片起始位置

背景图片从border-box开始水平垂直向下偏移50px

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p3.jpg) 50px 50px no-repeat;
        padding:50px;
        border:50px solid transparent;
        background-origin:padding-box;
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

背景图片从padding-box开始水平垂直向下偏移50px

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p3.jpg) 50px 50px no-repeat;
        padding:50px;
        border:50px solid transparent;
        background-origin:content-box;
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

背景图片从content-box开始水平垂直向下偏移50px

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p2.jpg) 50px 50px no-repeat;
        background-size:100%;/*宽度为容器宽度的100%,高度按图片比例来*/
        background-size:100% 100%;/*宽度为容器宽度的100%,高度为容器高度的100%*/
        background-size:cover;
        background-size:contain;
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

background-size: 填写数值或者百分比时,如果只填写一个值,另一个值默认为auto

cover 等比缩放填满容器

contain 等比缩放至一边碰到容器边

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:url(source/p2.jpg) 50px 50px no-repeat;
        background-size:100%;/*宽度为容器宽度的100%,高度按图片比例来*/
        background-size:100% 100%;/*宽度为容器宽度的100%,高度为容器高度的100%*/
        background-size:cover;
        background-size:contain;
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

多重背景图片

background-image:url(),url();

前面的图片会覆盖后面的图片

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background-image:url(source/shuiyin.png), url(source/cat.jpg);

    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

颜色设置为透明:transparent

css3渐变

兼容性:IE10

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:-webkit-linear-gradient(pink, orange, #abcdef);/*默认是垂直方向*/
        background:   -moz-linear-gradient(pink, orange, #abcdef);/*默认是垂直方向*/
        background:     -o-linear-gradient(pink, orange, #abcdef);/*默认是垂直方向*/
        background:        linear-gradient(pink, orange, #abcdef);/*默认是垂直方向*/

        background:-webkit-linear-gradient(left, pink, orange, #abcdef);/*从左到右*/
        background:   -moz-linear-gradient(right, pink, orange, #abcdef);
        background:     -o-linear-gradient(right, pink, orange, #abcdef);
        background:        linear-gradient(to right, pink, orange, #abcdef);

        background:-webkit-linear-gradient(left top, pink, orange, #abcdef);/*从左上到右下*/
        background:   -moz-linear-gradient(right bottom, pink, orange, #abcdef);
        background:     -o-linear-gradient(right bottom, pink, orange, #abcdef);
        background:        linear-gradient(to right bottom, pink, orange, #abcdef);
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

正常情况下线性渐变的角度

通过css3背景控制属性+使用颜色过渡实现渐变效果

webkit内核下线性渐变的角度

通过css3背景控制属性+使用颜色过渡实现渐变效果

解决方法:兼容浏览器的前缀按顺序书写,正常情况下无前缀的放在最后

颜色可以具体分配位置

第一个颜色不写默认是0%的位置;最后一个颜色默认是100%的位置

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:-webkit-linear-gradient(45deg, pink, orange, #abcdef);/*具体角度表示*/
        background:   -moz-linear-gradient(45deg, pink, orange, #abcdef);
        background:     -o-linear-gradient(45deg, pink, orange, #abcdef);
        background:        linear-gradient(45deg, pink, orange, #abcdef);

        background:-webkit-linear-gradient(90deg, orange, pink 30%, purple 70%, #abcdef);
        background:   -moz-linear-gradient(90deg, orange, pink 30%, purple 70%, #abcdef);
        background:     -o-linear-gradient(90deg, orange, pink 30%, purple 70%, #abcdef);
        background:        linear-gradient(90deg, orange, pink 30%, purple 70%, #abcdef);
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

rgba() 可以设置带透明色的渐变

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:-webkit-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1));/*具体角度表示*/
        background:   -moz-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1));
        background:     -o-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1));
        background:        linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1));

    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

重复渐变

repeating-linear-gradient

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 500px;
        height: 500px;
        background:-webkit-repeating-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1) 20%);
        background:   -moz-repeating-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1) 20%);
        background:     -o-repeating-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1) 20%);
        background:        repeating-linear-gradient(90deg, rgba(255,0,0,0), rgba(255,0,0,1) 20%);

    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

径向渐变 radial-gradient

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 400px;
        height: 200px;
        border-radius:50%;
        background:-webkit-radial-gradient(pink, #abcdef);
        background:   -moz-radial-gradient(pink, #abcdef);
        background:     -o-radial-gradient(pink, #abcdef);
        background:        radial-gradient(pink, #abcdef);
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

保持圆形渐变

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 400px;
        height: 200px;
        border-radius:50%;
        background:-webkit-radial-gradient(circle, pink, #abcdef);
        background:   -moz-radial-gradient(circle, pink, #abcdef);
        background:     -o-radial-gradient(circle, pink, #abcdef);
        background:        radial-gradient(circle, pink, #abcdef);
    }
</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

尺寸大小 closest-side closest-corner farthest-side farthest-corner

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 200px;
        height: 100px;
        border-radius:50%;
        margin-bottom:50px;
        line-height: 100px;
        text-align: center;
/*        background:-webkit-radial-gradient(circle, pink, #abcdef);
        background:   -moz-radial-gradient(circle, pink, #abcdef);
        background:     -o-radial-gradient(circle, pink, #abcdef);
        background:        radial-gradient(circle, pink, #abcdef);*/
    }
    div:nth-child(1){
        background:-webkit-radial-gradient(closest-side circle, pink, #abcdef);
        background:   -moz-radial-gradient(closest-side circle, pink, #abcdef);
        background:     -o-radial-gradient(closest-side circle, pink, #abcdef);
        background:        radial-gradient(closest-side circle, pink, #abcdef);
    }
    div:nth-child(2){
        background:-webkit-radial-gradient(closest-corner circle, pink, #abcdef);
        background:   -moz-radial-gradient(closest-corner circle, pink, #abcdef);
        background:     -o-radial-gradient(closest-corner circle, pink, #abcdef);
        background:        radial-gradient(closest-corner circle, pink, #abcdef);
    }
    div:nth-child(3){
        background:-webkit-radial-gradient(farthest-side circle, pink, #abcdef);
        background:   -moz-radial-gradient(farthest-side circle, pink, #abcdef);
        background:     -o-radial-gradient(farthest-side circle, pink, #abcdef);
        background:        radial-gradient(farthest-side circle, pink, #abcdef);
    }
    div:nth-child(4){
        background:-webkit-radial-gradient(farthest-corner circle, pink, #abcdef);
        background:   -moz-radial-gradient(farthest-corner circle, pink, #abcdef);
        background:     -o-radial-gradient(farthest-corner circle, pink, #abcdef);
        background:        radial-gradient(farthest-corner circle, pink, #abcdef);
    }
</style>
</head>
<body>
    <div>closest-side</div>
    <div>closest-corner</div>
    <div>farthest-side</div>
    <div>farthest-corner</div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

设置渐变的圆心位置

水平方向为宽度的10%,垂直方向为高度的20%

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 200px;
        height: 100px;
        margin-bottom:50px;
        line-height: 100px;
        text-align: center;
/*        background:-webkit-radial-gradient(circle, pink, #abcdef);
        background:   -moz-radial-gradient(circle, pink, #abcdef);
        background:     -o-radial-gradient(circle, pink, #abcdef);
        background:        radial-gradient(circle, pink, #abcdef);*/
    }
    div:nth-child(1){
        background:-webkit-radial-gradient(10% 20%, closest-side circle, pink, #abcdef);
        background:   -moz-radial-gradient(10% 20%, closest-side circle, pink, #abcdef);
        background:     -o-radial-gradient(10% 20%, closest-side circle, pink, #abcdef);
        background:        radial-gradient(10% 20%, closest-side circle, pink, #abcdef);
    }
    div:nth-child(2){
        background:-webkit-radial-gradient(10% 20%, closest-corner circle, pink, #abcdef);
        background:   -moz-radial-gradient(10% 20%, closest-corner circle, pink, #abcdef);
        background:     -o-radial-gradient(10% 20%, closest-corner circle, pink, #abcdef);
        background:        radial-gradient(10% 20%, closest-corner circle, pink, #abcdef);
    }
    div:nth-child(3){
        background:-webkit-radial-gradient(10% 20%, farthest-side circle, pink, #abcdef);
        background:   -moz-radial-gradient(10% 20%, farthest-side circle, pink, #abcdef);
        background:     -o-radial-gradient(10% 20%, farthest-side circle, pink, #abcdef);
        background:        radial-gradient(10% 20%, farthest-side circle, pink, #abcdef);
    }
    div:nth-child(4){
        background:-webkit-radial-gradient(10% 20%, farthest-corner circle, pink, #abcdef);
        background:   -moz-radial-gradient(10% 20%, farthest-corner circle, pink, #abcdef);
        background:     -o-radial-gradient(10% 20%, farthest-corner circle, pink, #abcdef);
        background:        radial-gradient(10% 20%, farthest-corner circle, pink, #abcdef);
    }
</style>
</head>
<body>
    <div>closest-side</div>
    <div>closest-corner</div>
    <div>farthest-side</div>
    <div>farthest-corner</div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

repeating-radial-gradient 重复径向渐变

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 200px;
        height: 100px;
        margin-bottom:50px;
        line-height: 100px;
        text-align: center;
        background:-webkit-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:   -moz-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:     -o-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:        repeating-radial-gradient(circle, pink, #abcdef 20%);
    }

</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

IE浏览器渐变

IE10+ 支持gradient 渐变

IE6-8 使用filter

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 200px;
        height: 100px;
        margin-bottom:50px;
        line-height: 100px;
        text-align: center;
        background:-webkit-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:   -moz-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:     -o-repeating-radial-gradient(circle, pink, #abcdef 20%);
        background:        repeating-radial-gradient(circle, pink, #abcdef 20%);
        filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=pink,endcolorstr=#abcdef,gradientType=1);
    }

</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

使用IE控制台可切换IE浏览器版本

IE filter

0 从左到右线性渐变

1 从上到下线性渐变

实际案例:

<!DOCTYPE html>
<html lang="en" manifest="index.manifest">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
    div{
        width: 600px;
        height: 300px;
        background-color:#abcdef;
        background-size:100px 100px;
        background-image:-webkit-linear-gradient(45deg, pink 25%, transparent 25%),
                         -webkit-linear-gradient(-45deg, pink 25%, transparent 25%),
                         -webkit-linear-gradient(45deg, transparent 75%, pink 75%),
                         -webkit-linear-gradient(-45deg, transparent 75%, pink 75%);
        background-image:-moz-linear-gradient(45deg, pink 25%, transparent 25%),
                         -moz-linear-gradient(-45deg, pink 25%, transparent 25%),
                         -moz-linear-gradient(45deg, transparent 75%, pink 75%),
                         -moz-linear-gradient(-45deg, transparent 75%, pink 75%);
        background-image:-o-linear-gradient(45deg, pink 25%, transparent 25%),
                         -o-linear-gradient(-45deg, pink 25%, transparent 25%),
                         -o-linear-gradient(45deg, transparent 75%, pink 75%),
                         -o-linear-gradient(-45deg, transparent 75%, pink 75%);
        background-image:linear-gradient(45deg, pink 25%, transparent 25%),
                         linear-gradient(-45deg, pink 25%, transparent 25%),
                         linear-gradient(45deg, transparent 75%, pink 75%),
                         linear-gradient(-45deg, transparent 75%, pink 75%);
    }

</style>
</head>
<body>
    <div></div>
</body>
</html>

通过css3背景控制属性+使用颜色过渡实现渐变效果

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稳了!魔兽国服回归的3条重磅消息!官宣时间再确认!

昨天有一位朋友在大神群里分享,自己亚服账号被封号之后居然弹出了国服的封号信息对话框。

这里面让他访问的是一个国服的战网网址,com.cn和后面的zh都非常明白地表明这就是国服战网。

而他在复制这个网址并且进行登录之后,确实是网易的网址,也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情,因为以前都没有出现这样的情况,现在突然提示跳转到国服战网的网址,是不是说明了简体中文客户端已经开始进行更新了呢?