我有一个设置为800像素的div标签。当浏览器宽度大于800像素时，不应拉伸，但应将其带到页面的中间。widthdiv
如何将<div>与页面的中间（水平/宽度）对齐[重复]
<body>
<div style=" display: table; margin: 250 auto;">
In center
</div>
</body>
If you want to change the vertical position, change the value of 250 and you can arrange the content as per your need. There is no need to give the width and other parameters.
If your center content is deep inside other divs then only margin can save you. Nothing else. I face it always when not using a framework like Bootstrap.
.middle {
margin:0 auto;
text-align: center;
}
/* it brings div to center */
parent {
position: relative;
}
child {
position: absolute;
left: 50%;
transform: translateX(-50%);
}<parent>
<child>
</child>
</parent>Use the below code for centering the div box:
.box-content{
margin: auto;
top: 0;
right: 0;
bottom: 0;
left: 0;
position: absolute;
width: 800px;
height: 100px;
background-color: green;
}<div class="box-content">
</div>This also works in Internet Explorer, but auto margins do not.
.centered {
position: absolute;
display: inline-block;
left: -500px;
width: 1000px;
margin: 0 50%;
}
Some other pre-existing setups from older code that will prevent div page centering L&R are:
- Other classes hidden in external stylesheet links.
- Other classes embedded in something like an
img(like for older external CSS print format controls). - Legend code with IDs and/or CLASSES will conflict with a named
divclass.
Centering without specifying div width:
body {
text-align: center;
}
body * {
text-align: initial;
}
body div {
display: inline-block;
}
This is something like <center> tag does, except:
- all direct inline childs elements (eg.
<h1>) of<center>will also positioned to center - inline-block element can have different size (comapred to
display:blocksetting) according to browser defaults
Simple http://jsfiddle.net/8pd4qx5r/
html {
display: table;
height: 100%;
width: 100%;
}
body {
display: table-cell;
vertical-align: middle;
}
.content {
margin: 0 auto;
width: 260px;
text-align: center;
background: pink;
}
body, html {
display: table;
height: 100%;
width: 100%;
}
.container {
display: table-cell;
vertical-align: middle;
}
.container .box {
width: 100px;
height: 100px;
background: red;
margin: 0 auto;
}
"width:100%" for the "body" tag is only for an example. In a real project you may remove this property.
Use justify-content and align-items to horizontally and vertically align a div
https://developer.mozilla.org/de/docs/Web/CSS/justify-content https://developer.mozilla.org/en/docs/Web/CSS/align-items
html,
body,
.container {
height: 100%;
width: 100%;
}
.container {
display: flex;
align-items: center;
justify-content: center;
}
.mydiv {
width: 80px;
}<div class="container">
<div class="mydiv">h & v aligned</div>
</div>Simply use the center tag just after the body tag, and end the center tag just before body ends:
<body>
<center>
... Your code here ...
</center>
</body>
This worked for me with all the browsers I have tried.
This can be easily achieved via flex container.
.container{
width: 100%;
display: flex;
height: 100vh;
justify-content: center;
}
.item{
align-self: center;
}
Add this class to the div you want centered (which should have a set width):
.marginAutoLR
{
margin-right:auto;
margin-left:auto;
}
Or, add the margin stuff to your div class, like this:
.divClass
{
width:300px;
margin-right:auto;
margin-left:auto;
}
Use the CSS flex property: http://jsfiddle.net/cytr/j7SEa/6/show/
body { /* Centered */
display: box;
flex-align: center;
flex-pack: center;
}
Div centered vertically and horizontally inside the parent without fixing the content size
Here on this page is a nice overview with several solutions, too much code to share here, but it shows what is possible...
Personally I like this solution with the famous transform translate -50% trick the most. It works well for both fixed (% or px) and undefined height and width of your element.
The code is as simple as:
HTML:
<div class="center"><div>
CSS:
.center {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
-ms-transform: translate(-50%, -50%); /* for IE 9 */
-webkit-transform: translate(-50%, -50%); /* for Safari */
/* optional size in px or %: */
width: 100px;
height: 100px;
}
Here a fiddle that shows that it works
You can also use it like this:
<div style="width: 60%; margin: 0px auto;">
Your contents here...
</div>
<div></div>
div {
display: table;
margin-right: auto;
margin-left: auto;
}
Modern Flexbox solution is the way to go in/from 2015. justify-content: center is used for the parent element to align the content to the center of it.
HTML
<div class="container">
<div class="center">Center</div>
</div>
CSS
.container {
display: flex;
justify-content: center;
}
.center {
width: 800px;
}
Output
.container {
display: flex;
justify-content: center;
}
.center {
width: 800px;
background: #5F85DB;
color: #fff;
font-weight: bold;
font-family: Tahoma;
}<div class="container">
<div class="center">Centered div with left aligned text.</div>
</div>To make it also work correctly in Internet Explorer 6 you have to do it as follows:
HTML
<body>
<div class="centered">
centered content
</div>
</body>
CSS
body {
margin: 0;
padding: 0;
text-align: center; /* !!! */
}
.centered {
margin: 0 auto;
text-align: left;
width: 800px;
}
<body>
<div style="width:800px; margin:0 auto;">
centered content
</div>
</body>
position: absolute然后top:50%和left:50%地方在屏幕的垂直中心处的水平中心左侧边缘的顶部边缘，并且，然后通过加入margin-top到div的高度的负的，即，-100移位它上面由100同样地，对于margin-left。这div恰好位于页面的中央。
#outPopUp {
position: absolute;
width: 300px;
height: 200px;
z-index: 15;
top: 50%;
left: 50%;
margin: -100px 0 0 -150px;
background: red;
}<div id="outPopUp"></div>
For some reason, none of the previous answers worked for me really. This is what worked for me and it works across browsers as well: