Given a div
with known dimensions, say width: 300px; height: 200px
, what is the easiest method to place it in the middle of the screen both vertically and horizontally ? Example here
给定已知尺寸的div,例如宽度:300px;高度:200px,最简单的方法是将它垂直和水平放置在屏幕中间?这里的例子
I'm interested in latest Firefox (no need for IE hacks).
我对最新的Firefox感兴趣(不需要IE黑客)。
CSS only please, no Javascript.
只有CSS,没有Javascript。
5 个解决方案
#1
9
Position it 50% from the window/parent container and use a negative margin size that's half of the elements width/height :)
将它从窗口/父容器中定位50%并使用负边距大小为元素宽度/高度的一半:)
position: absolute; // or fixed if you don't want it scrolling with the page.
width: 300px;
height: 200px;
left: 50%;
top: 50%;
margin-left: -150px;
margin-top: -100px;
You might need to set height: 100%
, on both the body
and html
您可能需要在body和html上设置height:100%
html, body {
height: 100%;
}
Edit: Here's a working example .
编辑:这是一个有效的例子。
#2
1
Without supporting IE, this is actually pretty easy to achieve using display: table
and display: table-cell
.
在不支持IE的情况下,使用display:table和display:table-cell实际上很容易实现。
Here's an update to your HTML:
这是对HTML的更新:
<div id='my_div'>
<div class="centered">this is vertically centered</div>
</div>
CSS:
CSS:
body, html
{
height: 100%;
}
body
{
margin: 0;
padding: 0;
border: 1px solid blue;
}
#my_div
{
width: 300px;
border: 1px solid red;
margin-left: auto;
margin-right: auto;
height: 100%;
display: table;
overflow: hidden;
}
.centered
{
display: table-cell;
vertical-align: middle;
text-align: center;
}
And to preview: http://jsfiddle.net/we8BE/
并预览:http://jsfiddle.net/we8BE/
#3
1
I don't know if this is the simplest way, but it seems to work.
我不知道这是否是最简单的方法,但似乎有效。
http://www.infinitywebdesign.com/research/cssverticalcentereddiv.htm
http://www.infinitywebdesign.com/research/cssverticalcentereddiv.htm
#4
0
What methods are you open to using? For example CSS up to what level - 2 or 3? Javascript? jQuery? My first thought is that, since divs can be centred horizontally through margin-left: auto;
and margin-right: auto;
, maybe try margin: auto;
for all 4 sides. Let me know if it works.
你有什么方法可以使用?例如CSS到什么级别 - 2或3? JavaScript的? jQuery的?我的第一个想法是,因为div可以通过margin-left水平居中:auto;和margin-right:auto;,也许尝试margin:auto;对于所有4方面。如果有效,请告诉我。
#1
9
Position it 50% from the window/parent container and use a negative margin size that's half of the elements width/height :)
将它从窗口/父容器中定位50%并使用负边距大小为元素宽度/高度的一半:)
position: absolute; // or fixed if you don't want it scrolling with the page.
width: 300px;
height: 200px;
left: 50%;
top: 50%;
margin-left: -150px;
margin-top: -100px;
You might need to set height: 100%
, on both the body
and html
您可能需要在body和html上设置height:100%
html, body {
height: 100%;
}
Edit: Here's a working example .
编辑:这是一个有效的例子。
#2
1
Without supporting IE, this is actually pretty easy to achieve using display: table
and display: table-cell
.
在不支持IE的情况下,使用display:table和display:table-cell实际上很容易实现。
Here's an update to your HTML:
这是对HTML的更新:
<div id='my_div'>
<div class="centered">this is vertically centered</div>
</div>
CSS:
CSS:
body, html
{
height: 100%;
}
body
{
margin: 0;
padding: 0;
border: 1px solid blue;
}
#my_div
{
width: 300px;
border: 1px solid red;
margin-left: auto;
margin-right: auto;
height: 100%;
display: table;
overflow: hidden;
}
.centered
{
display: table-cell;
vertical-align: middle;
text-align: center;
}
And to preview: http://jsfiddle.net/we8BE/
并预览:http://jsfiddle.net/we8BE/
#3
1
I don't know if this is the simplest way, but it seems to work.
我不知道这是否是最简单的方法,但似乎有效。
http://www.infinitywebdesign.com/research/cssverticalcentereddiv.htm
http://www.infinitywebdesign.com/research/cssverticalcentereddiv.htm
#4
0
What methods are you open to using? For example CSS up to what level - 2 or 3? Javascript? jQuery? My first thought is that, since divs can be centred horizontally through margin-left: auto;
and margin-right: auto;
, maybe try margin: auto;
for all 4 sides. Let me know if it works.
你有什么方法可以使用?例如CSS到什么级别 - 2或3? JavaScript的? jQuery的?我的第一个想法是,因为div可以通过margin-left水平居中:auto;和margin-right:auto;,也许尝试margin:auto;对于所有4方面。如果有效,请告诉我。