如何在CSS3中创建此渐变背景？

Question

整个my site我使用了以下图像作为背景。

如何使用CSS3和梯度，以产生类似的视觉元素？

Answer 1

我真的不能看到小图像，但我劝你去尝试在线CSS3发生器，像这样的：

CSS3 Gradient Generator

Answer 2

CSS3提供这样做的更多的跨浏览器的方法。

例

.box_gradient { 
    background-color: #fff; 
    /* Chrome 10+, Saf5.1+ */ 
    background-image: -webkit-linear-gradient(top, #fff, #ddd); 
    /* FF3.6 */ 
    background-image: -moz-linear-gradient(top, #fff, #ddd); 
    /* Opera 11.10+ */ 
    background-image: -o-linear-gradient(top, #fff, #ddd); 
    background-image: linear-gradient(top, #fff, #ddd); 
    /* IE6–IE9 */ 
    filter: progid:DXImageTransform.Microsoft.gradient(startColorStr='#ffffff', EndColorStr='#dddddd'); 
} 

您将需要100％的高度你的html和body标签。

Answer 3

以下是您正在寻找CSS的代码。

~~ HTML ~~

<DIV class="mygradient"></DIV> 

~~ CSS ~~

.mygradient{ 

    height:300px; 
    width:100px; 

    background: #7a0000; /* Old browsers */ 
    /* IE9 SVG, needs conditional override of 'filter' to 'none' */ 
    background: url(data:image/svg+xml;base64,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); 
    background: -moz-linear-gradient(top, #7a0000 0%, #900000 63%, #940000 96%, #650000 100%); /* FF3.6+ */ 
    background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#7a0000), color-stop(63%,#900000), color-stop(96%,#940000), color-stop(100%,#650000)); /* Chrome,Safari4+ */ 
    background: -webkit-linear-gradient(top, #7a0000 0%,#900000 63%,#940000 96%,#650000 100%); /* Chrome10+,Safari5.1+ */ 
    background: -o-linear-gradient(top, #7a0000 0%,#900000 63%,#940000 96%,#650000 100%); /* Opera 11.10+ */ 
    background: -ms-linear-gradient(top, #7a0000 0%,#900000 63%,#940000 96%,#650000 100%); /* IE10+ */ 
    background: linear-gradient(to bottom, #7a0000 0%,#900000 63%,#940000 96%,#650000 100%); /* W3C */ 
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#7a0000', endColorstr='#650000',GradientType=0); /* IE6-8 */ 

} 

添加一个 “梯度” 类的元素都具有对IE9渐变支持。

~~ HTML ~~

<DIV class="mygradient gradient"></DIV> 

并添加以下重写你的HTML完成IE9支持：

~~ HTML ~~IE9的全支持

<!--[if gte IE 9]> 
    <style type="text/css"> 
    .gradient { 
     filter: none; 
    } 
    </style> 
<![endif]-->