background-color:设置元素的背景颜色。 div{background-color: lightblue; } background-image:设置元素的背景图片,图片可以是本地路径或网络地址。 div{background-image:url('background.jpg'); } opacity:设置元素的不透明度,取值范围是0到1。 div{opacity:0.8; } 3.3 布局相关属性 width和height:定义元素的...
color-dodge:Brightens the background based on the foreground color. color-burn:Darkens the background based on the foreground color. Example: CSS div{background-image:url('image.jpg');background-blend-mode:multiply;} Tips Experiment with different blend modes to achieve unique visual effects. ...
再利用CSS的”background-image”,“background-repeat”,”background-position”的组合进行背景定位,background-position可以用数字精确的定位出背景图片的位置。 Q15、使用CSS Sprites的好处利用CSS Sprites能很好地减少网页的http请求,从而大大的提高页面的性能,这也是CSS Sprites最大的优点,也是其被广泛传播和应用的...
backface-visibilityDefines whether or not the back face of an element should be visible when facing the user backgroundA shorthand property for all thebackground-*properties background-attachmentSets whether a background image scrolls with the rest of the page, or is fixed ...
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div[id="demo"]{background-image:url(n.gif)} 代码: View Code 截图: 这里可以验证出:A情况中的权重比B中的权重高一点,也就是ID选择器的权重比属性选择器权重高 重点注意: 1、*选择器没有权重值,当然我们可以形象设定他的权重值为0000点 2、我们设定伪元素(例如:“ :first-line ”)权重值为0001点,而...
一、CSS背景属性Property描述background简写属性,作用是将背景属性设置在一个声明中。background-attachment背景图像是否固定或者随着页面的其余部分滚动。background-color设置元素的背景颜色。background-image把图像设置为背景。background-position设置背景图像的起始位置。background-repeat设置背景 ...
The background-size CSS property sets the size of the element's background image. The image can be left to its natural size, stretched, or constrained to fit the available space.
/* Function 9: radial-gradient() - Creating Radial Gradients */.radial-gradient-demo{width:100px;height:100px;background:radial-gradient(circle, red, blue);/* Radial gradient background */margin:20px;display: inline-block;} /* Function 10: attr() - Accessing HTML...