css3 gradient 渐变_html/css_WEB-ITnose
分为linear-gradient(线性渐变)和radial-gradient(径向渐变)。
1.线性渐变在Mozilla 下应用
语法:-moz-linear-gradient( [
参数;共三个参数,第一个参数表示为线性渐变的方向,top是从上往下,left 是从左到右 如果定义成left top,
那就是从左上角到右下角。第二个和第三个参数分别是起点颜色和终点颜色。
例如:
background: -moz-linear-gradient( top,#ccc,#000);
2.线性渐变在Webkit下的应用
语法:-webkit-linear-gradient( [
//最新发布书写语法
-webkit-gradient(
//老式语法书写规则
参数:-webkit-gradient是webkit引擎对渐变的实现参数,一共有五个。第一个参数表示渐变类型(type),
可以是linear(线性渐变)或者radial(径向渐变)。第二个参数和第三个参数,都是一对值,分别
表示渐变起点和终点。这对值可以用坐标形式表示,也可以用关键值表示,比如 left top(左上角)
和left bottom(左下角)。第四个和第五个参数,分别是两个color-stop函数。color-stop函数接受
两个参数,第一个表示渐变的位置,0为起点,0.5为中点,1为结束点;第二个表示该点的颜色。
老式书写方法:background: -webkit-gradient(linear,center top,center bottom,from(#ccc), to(#000));
新式书写方法:-webkit-linear-gradient(top,#ccc,#000);
3.线性渐变在Oper 下的应用:
语法:-o-linear-gradient([
实例:background: -o-linear-gradient(top,#ccc, #000);
4.线性渐变在Trident(IE)下的应用
语法:filter: progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr=#1471da, endColorstr=#1C85FB);/*IE*/
-ms-filter: "progid:DXImageTransform.Microsoft.gradient (GradientType=0, startColorstr=#1471da, endColorstr=#1C85FB)";/*IE8+*/
IE依靠滤镜实现渐变。startColorstr表示起点的颜色,endColorstr表示终点颜色。
GradientType表示渐变类型,0为缺省值,表示垂直渐变,1表示水平渐变。
1、开始于center(水平方向)和top(垂直方向)也就是Top → Bottom:
/* Firefox 3.6+ */
background: -moz-linear-gradient(top, #ace, #f96);
/* Safari 4-5, Chrome 1-9 */
/* -webkit-gradient(, [, ]?, [, ]? [, ]*) */
background: -webkit-gradient(linear,top,from(#ace),to(#f96));
/* Safari 5.1+, Chrome 10+ */
background: -webkit-linear-gradient(top, #ace, #f96);
/* Opera 11.10+ */
background: -o-linear-gradient(top, #ace, #f96);
2、始于left(水平方向)和center(垂直方向)也是就Left → Right:
/* Firefox 3.6+ */
background: -moz-linear-gradient(left, #ace, #f96);
/* Safari 5.1+, Chrome 10+ */
background: -webkit-linear-gradient(left, #ace, #f96);
/* Opera 11.10+ */
background: -o-linear-gradient(left, #ace, #f96);
3、起始于left(水平方向)和top(垂直方向):
background: -moz-linear-gradient(left top, #ace, #f96);
background: -webkit-linear-gradient(left top, #ace, #f96);
background: -o-linear-gradient(left top, #ace, #f96);
4、角度(Angle):
没有角度的示例代码:
background: -moz-linear-gradient(left, #ace, #f96);
background: -webkit-linear-gradient(left,#ace,#f96);
background: -o-linear-gradient(left, #ace, #f96);
加上30度的角度代码:
background: -moz-linear-gradient(left 30deg, #ace, #f96);
background: -webkit-gradient(linear, 0 0, 100% 100%, from(#ace),to(#f96));
background: -o-linear-gradient(30deg, #ace, #f96);

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