com--> <style type='text/css'> body { background-image: url(http://www.java2s.com/style/download.png); background-repeat: no-repeat; background-position:0 0; background-color: #ffffff; font-family:arial;} div { background-image: url(http://www.java2s.com/style/download....
其实,要想控制好层的绝对定位,只要理解CSS中关于定位(position)的定义,一切就会变得轻松简单。 CSS中关于定位(position)是这样定义的: 定位(position)允许用户精确定义元素框出现的相对位置,可以相对于它通常出现的位置,相对于其上级元素,相对于另一个元素,或者相对于浏览器视窗本身。每个显示元素都可以用定位的方法来...
line-height: 50px; text-align: center; position: static; top: 50px; left: 20px; } </style> </head> <body> <div> <divclass="static">item;</div> </div> </body> </html> 运行结果: 2. 相对定位:relative 举例: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ...
If single value is given, the other value is taken as center. In the following example single values have been used.ExampleOpen Compiler <!DOCTYPE html> <html> <head> <style> .background { background-image: url('/css/images/tutimg.png'); background-size: 100px 100px; border: 4px ...
text-align: center; } 4. 元素的堆叠顺序 示例 元素定义了一个绝对位置,会与其他元素堆叠。设置z-index:-1 后,将其放到下层 img { position:absolute; left:0px; top:0px; z-index:-1; } 分类: 前端开发 / CSS基础教程 标签: css , html , 前端 好文要顶 关注我 收藏该文 微信分享 运维开...
="https://github.com/freeCodeCamp/news-translation/blob/main/chinese/articles/css-position-property-explained.md#what-is-the-sticky-position-in-css">CSS 中的粘性定位 CSS 中的 position 属性 如果你想要制作一个独特、漂亮、有艺术风格的网页,那么你绝对应该学习如何使用 CSS 的 position 属性。让我们来...
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The background-position CSS property sets the initial position for each background image. The position is relative to the position layer set by background-origin.
The position property can be used to perfectly center an element inside its container. The element stays in the center even when the browser resizes. <style> .parent { border: solid 1px steelblue; height: 300px; position: relative; } .child { background: steelblue; height: 80px; width:...
Customize the position of your elements relative to themselves, to parent or sibling elements, or to the viewport.The position property...