[Urgent] How to vertically center the page? ? ? ? _html/css_WEB-ITnose

black; height: 1px; width: 630; vertical-align:middle"/>

I am a newbie at this.
There is a dotted line here. I want it to be in the middle of the page, but it has no effect...

Reply to discussion (solution)

Actually I want to have a table above and below the dotted line...

to be symmetrical...

But the dotted line is never in the middle of the page

You can Write a attribute as the width you want, the height is 1; the background color is the color you want, margin:0 auto

You can write a attribute as you want The width and height are 1; the background color is the color you want, margin:0 auto

I am a novice... Can you write it out and see if you can! I don’t quite understand

css

div { padding:10px 0; }
#div1 { boder -bottom:1px dashed black; }

If you want to achieve vertical centering in the div, please refer to this http://bbs.csdn.net/topics/390246536

About For this kind of centering, please click: http://www.cnblogs.com/yjzhu/archive/2012/11/19/2773209.html

Quoting the reply from sincerity_love on the 2nd floor: You can write a I am a novice... Can you write it out? I don’t quite understand

I made a mistake last time, it should be DIV, because span is an inline element and there is no way to set the width and height unless display is set;

Try this method and see