How can I align a DIV to the center of my page while its position is absolute? If possible without using javascript.
UPDATE: This is an old answer and the answer currently just below this gives a nicer solution which works even if your div has dynamic width. Another alternative, using margin: auto, can be found here, on a different, but related, question.
You can do this if you know the width of the DIV you want to centre.
CSS:
div
{
position: absolute;
top: 50%;
left: 50%;
width: 400px;
height: 300px;
margin-top: -150px;
margin-left: -200px;
}
You position the top left corner in the centre, and then use negative margins which are half of the width to centre it.
position: absolute;
left: 50%;
transform: translateX(-50%);
Try this:
position: absolute;
width: 600px;
left: 50%
margin-left: -300px;
It's not possible to get HTML to automatically center anything that is absolutely positioned. Heck, HTML barely centers anything horizontally using CSS margins :-)
As the name implies absolute positioning is absolute where you get top and left fixed positions and any margins are applied relative to those positions. Auto is ignored with absolute positioning.
There are solutions using JavaScript and jQuery. Here's one that I wrote and use a lot:
jQuery .centerInClient() plugin
Hope this helps.
The meaning of position: absolute is exactly that you want to specify how far from the margins of the page your div should be placed. Since you do not know the width of the screen a priori, there is no way to center it.
I guess you just want to remove the div from the page flow, while keeping it centered. In this case it may be enough to add a container div, like
<div id="external">
<div id="internal">
</div>
</div>
and the CSS
#external {
position: absolute
}
#internal {
margin: 0 auto
}
I did not test the above layout, but I think it should work.
Here's a simple method using percentages:
div {
width: 80%;
position: absolute;
left: 10%;
}
Simply set your desired page width, and set the left margin as half of the remainder. In this case, the width is 80%, leaving 20%. Set left:to 10% and it will center the div on the page.
Using this method will allow the div to scale with different window sizes and screen resolutions as well.
Related
So I've been told (maybe this is wrong) that if you want to overide (go beyond) the margins of a parent div simply make the child position:absolute. The problem with this is that it will overlap text that is set below that div.
Is there a way to;
Override the margins of the parent div and have that div still push down the adjacent text?
Can this be executed by not applying a margin-top: to the first block of text? This solution seems sloppy, the layout would blow up while in mobile view.
Thanks for you help / opinion on this one.
The page in question can be found here.
remove the image background for the div has the position absolute and put the image as a background for the parent div with the following selector:
.entry-content {
padding: 0 40px 40px;
background: url('http://www.gridviper.com/phelan/wp-content/uploads/back-blue-top4.jpg') no-repeat;
background-size: 100% 219px;
}
and change the absolute div css to be as the following:
.content-masthead {
max-width: 100%;
min-height: 219px;
position: relative;
left: 0;
right: 0;
margin-left: 0px;
padding-left: 0px;
}
Few hinds to help you fixing this:
This this not the parent, but the first positioned ancestor (with position other than null, can be "relative").
You can define the size of this element in percentage relative to this ancestor.
You can use padding instead of margin to keep the space.
I have a very teasing issue. I have a div positioned absolutely to a point. But when i resize the window, it is moved to other place and not pointed towards where i set it before. How can i resolve this problem?
Here is my HTML -
<div style="position:relative;">
<div id="intro_message">
content
</div>
</div>
And the CSS for "intro_message" div -
#intro_message
{
position: absolute;
left: 322px;
top: 0;
padding: 20px;
width: 505px;
}
You can clearly see even i used relative position to its parent it still doesn't work for me.
EDIT -
Here from 'clearly see..." means if i would have not tell that i used relative positioning then everyone here would suggest me to use it. Therefore i told you all in advance.
EDIT 2 -
#David - After reading you solution, i understood it, actually i had to do one little but crucial change in my css. Now, i have following css for my main container div -
margin: auto;
position: relative;
width: 505px;
and for the inner div #intro_message i have changed some values to position it fine -
#intro_message
{
position: absolute;
left: -137px;
top: -4px;
padding: 20px;
width: 505px;
}
Now it is placed nicely pointing towards a link where i wanted it to be. On resize it still well, but when i go on resizing it is moved again -
on full window by default -
on resize - issue arises again -
So how to solve it?
I assume that you do not actually want the div to be fixed to a coordinate point, because that is what absolute positioning relative to the window does: resizing the page will move everything but the div. So you must want it to be fixed relative to the document.
Though you mentioned you tried relative positioning and it didn't work for you, that is actually the answer to this problem. You used it incorrectly.
Let me explain:
Divs naturally fill the entire width of their parent containers, so placing your absolutely positioned element inside a plain div essentially did nothing. In order for it to matter, you need to have the parent container be in the right spot. I would assume that your parent container would probably be centered inside your page and be a fixed width.
To do this, you can create your div and assign a width and automatic margins to center it:
div[c]{
width: 400px;
margin: auto;
}
As you can see in the following fiddle, both the div positioned relative to the window and the div positioned relative to the yellow div end up in the same place because the div has the full width of the page, but the div positioned relative to the blue div is moved where it should be and will stay there if you resize the page.
JSFiddle
Just use this css:
<style type="text/css">
#intro_message
{
position: absolute;
left: 30%;
top: 0;
padding: 4%;
width: 505px;
}
</style>
In CSS
.contains{
position:relative;
margin:0 auto;
width:900px;//or whatever you want
}
Html:
<div class="contains">
<div id="intro_message">
you are not clearly define your problem so i assume that you have problem in left postion.
I think when you are resize the window inner div will be plot left will be change according to you.
There is no problem regarding to position but your logic was not cleared.
if you want left inner div perfectly than use "percentage" rather than "pixel"
example:
#intro_message
{
position: absolute;
left: 30%;
top: 0;
padding: 20px;
width: 505px;
}
I'm trying to think of a clever way to deal with a part of a webpage where the image is going to be swapped out with different images (of varying widths, max being 620px wide), and a text caption is absolutely positioned over it. I want the text to absolutely position based on the width of the image rather than the width of the relatively positioned container.
I was thinking maybe something with background-image, rather than an image itself, but then I have to deal with the fact that it's an empty div with a background image, so I'd have to hardcode a height, which wouldn't work since some of these images would be taller than others.
Any solutions you guys can think of would be greatly appreciated. Thanks!
I'm not sure if I'm following 100%, but here's how to do what I think you're trying to do.
Create your container with position relative, set your widths and heights, and set overflow to hidden:
.container-outer {
position: relative;
width: 200px;
height: 200px;
overflow: hidden;
}
Next, create an inner container inside of it that simply has position: absolute
.container-inner {
position: absolute;
}
Finally, create your overlay text style to be 100% width and center horizontally (or however you want it to be positioned)
.overlay {
position: absolute;
text-align: center;
width: 100%;
margin: 0;
}
Here's the jsfiddle with an example: http://jsfiddle.net/BGvca/1/
Good luck!
I raise the previous answer with some more CSS
<div class="imageholder">
<div class="caption">Simon & Garfunkel</div>
<img src="http://greenobles.com/data_images/simon-and-garfunkel/simon-and-garfunkel-03.jpg">
</div>
.imageholder{
position: relative;
float: left;
}
.caption{
position: absolute;
top: 0;
left: 0;
right: 0;
font-family: Helvetica,sans-serif;
font-size: 1em;
background: rgba(0,0,0,0.5);
color: #fff;
padding: 1em 2em;
}
See the jsFiddle for reference.
If you make the div containing the image inline-block, its width will scale to the size of its content, ie your image.
Once the container is sizing correctly, you can center other child elements, like your caption, inside it using a wrapper with text-align: center, or no wrapper and value of auto for the left and right margins.
Here's an example: http://jsbin.com/uyajaw/3/edit (with ugly borders and backgrounds to show where stuff is)
Click the image to resize it and see the caption still centered.
Note that if your caption is likely to be larger than your image, it will probably expand the width of the container div, throwing off the center alignment. You can avoid this by making the setting position: absolute; left: 0; right: 0; on the caption, or by giving it a width that you know will always be smaller than your image.
I don't know if I'm over-thinking this, but here's a way to do it. If you specifically don't want to align the caption with the wrapper div, then you'll need to also account for the imagesLoaded event (jQuery plugin). Otherwise, you will either have an img width of 0 if not loaded, or you'll have the previously loaded img width in there (unless you go back to it).
Take a look at this Fiddle that shows a fixed width wrapper div and the caption centered on it.
I am trying to create a lead generation page. I want to center all the contents on the page to the center when displayed on any browser size.
i tried using vertical align center. But it seems not to work.
Which are the best practices to do so ?
http://play.mink7.com/h/mspre/
If you just mean centering between left and right edges, you create an element with a fixed width, and declare margin: auto; on it.
If you want to center the element both horizontally and vertically, you position it halfway across the page both horizontally and vertically, then pull it back by half of the element's width and height.
For example:
.someElement {
position: absolute;
top: 50%;
left: 50%;
width: 200px;
height: 200px;
margin: -100px 0 0 -100px;
}
For me the best way to do it is to make a container div of set width. I normally choose about 900px as pretty much all displays are wider than this now a days. I then centre div by using margin auto.
#container { width: 900px;
margin: 0px auto 0px auto;
}
This will centre the div. Bob's your uncle.
If you want I can post examples of this.
Mike
Here you go:
http://www.jakpsatweb.cz/css/css-vertical-center-solution.html
I cannot get positioning, max-width, and 'right: 0px' to work together in harmony! I'm creating a div that is fixed on my site in the upper right corner. The content of the page has a max-width of 1000px, however the label only obeys my rule of 'right: 0px' and sticks to the right, disobeying once max-width has been reached. It should also be noted that by default, the div is in the upper left and obeys the max-width (if I type 'left: 0px;' though, it does not obey the rule and it sticks to the left).
CSS:
#content {
margin: 0 auto;
max-width: 1000px; }
#div {
width: 150px;
position: fixed;
right: 0px; }
Here are some alternatives that I've already tried:
width: 100% (with text-align: right) <--- not quite right, and I don't like the 100% width as opposed to 150px
adding code to position the div "manually" in the html (not CSS)
I've discovered that float and text-align don't affect to fixed positioning
Help is greatly appreciated! Thank you.
If I understand correctly, this is what you're after.
You need to add a container with an absolute position to get the content over to the right and then use a fixed position container to keep it top right where you need it.
Alternative if you don't want to add additional absolute container
#div {
width: 150px;
position: fixed;
right: calc(50% - 500px); /* will move the div as far as 50% of viewport
then move it back to 500px (that is half of max-width) */
}
/* if needed, you can add media query */
#media (max-width: 1000px) {
right: 0;
}
I got it working with no problem in a jsfiddle. You may want to look around at the CSS that is affecting the area. You may have an issue if #content is not a block level element (no width will be applied and such. More code from you would be greatly helpful so we know exactly what is going on and can help you out more.
I think you need this one:
#content {
margin: 0 auto;
max-width: 1000px;
height:20px;
background:yellow;
position: relative;
}
#div {
width: 150px;
position: absolute;
right: 0px;
}
position:fixed is not relative to any container. It is relative to the html element of the DOM. That is the reason you're seeing it at extreme right whatever you do to the #content.