一,用CSS使DIV层水平居中
对需要水平居中的DIV层添加以下属性:
margin-left: auto;
margin-right: auto;
这样在FF中已经居中了,可是在IE中看还是没有居中!
问题并不在CSS而在XHTML网页本身.
需要加上这样的代码才能使得上述设置有效果:
如何使DIV居中
主要的样式定义如下:
body { TEXT-ALIGN: center; }
#center { MARGIN-RIGHT: auto; MARGIN-LEFT: auto; }
说明:
首先在父级元素定义TEXT-ALIGN: center;这个的意思就是在父级元素内的内容居中;对于IE这样设定就已经可以了。但在mozilla中不能居中。解决办法就是在子元素定义时候设定时再加上“MARGIN-RIGHT: auto;MARGIN-LEFT: auto; ”
需要说明的是,如果你想用这个方法使整个页面要居中,建议不要套在一个DIV里,你可以依次拆出多个div,只
要在每个拆出的div里定义MARGIN-RIGHT: auto;MARGIN-LEFT: auto; 就可以了。
如何使图片在DIV 中垂直居中
用背景的方法。举例:
body{ BACKGROUND: url(http://www.w3cn.org/style/001/logo_w ... )#FFFno-repeatcenter; }
关键就是最后的center,这个参数定义图片的位置。还可以写成“top left”(左上角)或者"bottom right"等,也可以直接写数值"50 30"
如何使文本在DIV中垂直居中
果是文字,便不能用背景方法,可以用增高行距的办法变通实现垂直居中,完整代码如下:
test content
说明:
vertical-align:middle;表示行内垂直居中,我们将行距增加到和整个DIV一样高line-height:200px;然后插入文字,就垂直居中了。
CSS+DIV控制页面中元素垂直居中代码 全局和区域垂直居中
另一方法:
******************************************
Second, use JS to center the layer
Add the following code to the
□::BEST4U Forum:: | |
function moveit() //This function is used to move the layer to the middle of the browser
{
L1.style.left=((document.body.offsetWidth -parseFloat (L1.style.width))/2) document.body.scrollLeft;
L1.style.top=((document.body.offsetHeight-parseFloat (L1.style.height))/2 ) document.body.scrollTop;
}
window.onload=moveit; //Execute moveit() when the web page is opened
window.onresize=moveit; // Execute moveit() when resizing the browser
window.onscroll=moveit; //Execute moveit() when pulling the scroll bar

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