Question

我是网络开发的新手，我刚刚开始为自己的个人网站编码。我绝对不知道html和css的任何语法。通过在线阅读和观看教程，我设法创建了我网站的背景渐变，但渐变并不像我想要的那样。我希望在调整浏览器窗口大小时，渐变保持相同的比例。现在，根据窗口大小拉伸渐变。

请帮忙。这是我到目前为止用于css的代码

 html {
    height: 100%;
    background: #499bea;
}

body
{
    float:left;
    position:relative;
    height: 100%;
    width: 100%;
    background-position: 0px 0px;
    margin: 0;
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size:100% 100%;
    -moz-background-size: 100% 100%;
    -webkit-background-size: 100% 100%;
    -o-background-size: 100% 100%;
    background: #499bea;
    background: -moz-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, , color-stop(0%, #499bea), color-stop(100%, #00438a));
    background: -webkit-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -o-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -ms-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: radial-gradient(ellipse at center, #499bea 0%, #00438a 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#499bea', endColorstr='#00438a', GradientType=1 );

}

Answer 1

摆脱高度并切换背景大小以及其他一些调整应该可以解决问题：

 html {
height: 100%;
background: #499bea;
}

body
{
    float:left;
    position:relative;
    /* Removed height */
    width: 100%;
    margin: 0;
    background: no-repeat center center fixed;
    background-size: cover;
    -moz-background-size: cover;
    -webkit-background-size: cover;
    -o-background-size: cover;
    background: #499bea;
    background: -moz-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -webkit-gradient(radial, center center, 0px, center center, 100%, , color-stop(0%, #499bea), color-stop(100%, #00438a));
    background: -webkit-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -o-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: -ms-radial-gradient(center, ellipse cover, #499bea 0%, #00438a 100%);
    background: radial-gradient(ellipse at center, #499bea 0%, #00438a 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#499bea', endColorstr='#00438a', GradientType=1 );

}

.container { height: 900px; }

JSFiddle：http://jsfiddle.net/LJY9y/

Answer 2

如果您不希望它被拉伸，请使用circle代替ellipse：

background: radial-gradient(circle at center, #499bea 0%, #00438a 100%);

Demo

中心背景渐变

2 个答案: