I have a layer with an image inside:
<div id="foo"><img src="url" /></div>
and it is fixed positioned:
#foo {
position: fixed;
}
but I also want the layer to be horizontally centered in the page. So I've tried:
http://jsfiddle.net/2BG9X/
#foo {
position: fixed;
margin: auto
}
and
http://jsfiddle.net/2BG9X/1/
#foo {
position: fixed;
left: auto;
}
but doesn't work. Any idea of how to achieve it?
When you position an element to fixed, it gets out of the document flow, where even margin: auto; won't work, if you want, nest an element inside that fixed positioned element and than use margin: auto; for that.
Demo
Demo 2 (Added height to the body element so that you can scroll to test)
HTML
<div class="fixed">
<div class="center"></div>
</div>
CSS
.fixed {
position: fixed;
width: 100%;
height: 40px;
background: tomato;
}
.center {
width: 300px;
margin: auto;
height: 40px;
background: blue;
}
Some will suggest you to use display: inline-block; for the child element with the parent set to text-align: center;, well if that suffice your needs, than you can go for that too...
.fixed {
position: fixed;
width: 100%;
height: 40px;
background: tomato;
text-align: center;
}
.center {
display: inline-block;
width: 300px;
height: 40px;
background: blue;
}
Demo 2
Just make sure you use text-align: left; for the child element, else it will inherit the text-align of the parent element.
Use transform: translate(-50%, 0);
Example Code: http://codepen.io/fcalderan/pen/uJkrE
CSS
div {
position: fixed;
border: 3px #555 solid;
left: 50%;
-webkit-transform: translate(-50%, 0);
-moz-transform: translate(-50%, 0);
-ms-transform: translate(-50%, 0);
transform: translate(-50%, 0);
}
Try the following.
#foo {
position: fixed;
left: 50%;
width: 30%;
transform: translate(-50%, 0);
}
Fiddle
this way not cross browser you must set percent width for layer e.g width:30% and set left:35% and right:35% and position:fixed
this is better and work on all browser RTL and LTR
Related
I have this simple code to vertically and horizontally center a text element on a page:
body {
max-width: 1200px;
margin: 0 auto;
}
.container {
position: relative;
transform-style: preserve-3d;
height: 100vh;
}
.center {
position: absolute;
top: 50%;
left: 50%;
transform: translateY(-50%);
}
Doing this places the text in the in the vertical center of the container, but ever-so-slightly off-center to the right on the horizontal. I would think "left: 50%" would horizontally center it correctly, no?
Close, but you need to add translateX as well. Luckily, there's a nice shorthand for accomplishing both X and Y transform at the same time:
.center {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
The reason it's slightly off-center is because left: 50% pushes the element so that it's left side is at 50% exactly. Adding the transformX(-50%) negates that extra space. See the snippet below:
.box-container {
position: relative;
height: 200px;
}
.center-box {
position: absolute;
background: black;
width: 50px;
height: 50px;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
<div class="box-container">
<div class="center-box"></div>
</div>
If you can use flexbox then I would recommend using it. It makes this very simple:
body {
margin: 0;
}
.container {
height: 400px; /* Just for the snippet */
width: 400px; /* Just for the snippet */
background-color: #f4f4f4; /* Just for the snippet */
margin: 0 auto; /* Just for the snippet */
display: flex;
align-items: center;
justify-content: center;
}
<div class="container">
<div class="center">
This is centered
</div>
</div>
You can find about flexbox browser support from here: http://caniuse.com/#search=flex
As you can see from this fiddle:
http://jsfiddle.net/t1h3aauh/2/
I'm through a problem that I've never been before. I'm working with Drupal CMS and it generates a lot of the markup you need to style.
Given the use case, I have a MODAL box that are wrapped into a lot of divs and, like all MODALS, it need to be FIXED positioned. But, when I do this, the behavior is very much like absolute positioning. It get stuck in place and inherit all the .wrap div dimensions.
Thanks for the help.
Edit
The code:
HTML
<header class="sticky">log and menu</header>
<main>
<section class="test">
<div class="wrap">
<div class="myEl">
<!--HERE BE SOME SCROLLABLE ELEMENTS-->
<div.class="iWannaBeScrollable">i'm scrollable</div>
<!--HERE BE THE FIXED ONE-->
<div class="modal">as you can see, this should be FIXED, but appears to be stuck into the parent.</div>
</div>
</div>
</section>
</main>
CSS
body{
margin: 0;
padding: 0;
}
.sticky{
float: left;
position: fixed;
height: 40px;
width: 100%;
background-color: green;
left: 0;
top: 0;
z-index: 10;
}
.wrap {
background-color: #333;
-webkit-transform: translateX(-50%);
-moz-transform: translateX(-50%);
-ms-transform: translateX(-50%);
-o-transform: translateX(-50%);
transform: translateX(-50%);
width: 100%;
height: auto;
max-width: 1200px;
float: left;
position: relative;
left: 50%;
}
main {
height: 1535px;
width: 100%;
float: left;
position: relative;
.test {
width: 100%;
height: auto;
padding: 72px 0;
float: left;
position: relative;
&::before{
content: "";
width: 100%;
height: 82%;
top: 21%;
background-color: #fafafa;
position: absolute;
}
.myEl{
float: left;
position: relative;
height: 300px;
width: 100%;
.modal {
position: fixed;
height: 100%;
width: 100%;
background-color: rgba(255,0,255,.5);
left: 0;
top: 0;
z-index: 100;
}
}
}
}
Why is there
transform: translateX(-50%);
on the .wrap element?
I think thats causing your problem...
IIRC: In my Drupal days, anytime you needed to fix an element, you wanted to call the top most parent.
So in this case, you would want to apply postioned:fixed it to .wrap.
.wrap{
position:fixed;
}
Here's why:
You are styling Modal with the fixed, so it is staying fixed within it's parent. You're parent/grandparent is styled as position:relative. Which makes .wrap and .myEl scrollable, while the modal is fixed within the scrollable div.
This makes it appear as if it is position:absolute;
how to make absolute center horizontal and vertical a div with fluid width and height using css?
Thanks in advance for helping.
#div_parent{
background:#ccc;
position:relative;
}
.div_child{
background-color:#338BC7;
position: absolute;
left: 50%;
width: auto;
height: auto;
padding: 20px;
top:25%;
background: blue;
color: white;
text-align: center;
border:1px solid #ccc;
}
<div id="div_parent">
<div class="div_child">
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
A couple of problems with your code:
You do not have a width and height specified on your html and body, without which any of descendent elements wouldn't have a reference to set their positions and/or dimensions in percent units.
You do not have dimensions (width/height) specified on your #div_parent, without which you cannot position its absolutely positioned child (which is relative to it) to the vertical center. Moreover, as you want to position your .div_child to the center of the page, why do you have a parent wrapped around it anyway.
Apart from fixing the above, a trick which is usually used to align elements both horizontally and vertically is to use transform: translate to shift it back by 50%.
Like this:
.div_child {
position: absolute; left: 50%; top: 50%;
transform: translate(-50%, -50%);
...
}
Fiddle: http://jsfiddle.net/abhitalks/Lnqvqnkn/
Snippet:
* { box-sizing: border-box; paddin:0; margin: 0; }
html, body { height: 100%; width: 100%; }
#div_parent{ height: 100%; width: 100%; background: #ccc; position: relative;}
.div_child {
background-color: #338BC7;
position: absolute; left: 50%; top: 50%;
transform: translate(-50%, -50%);
width: auto; height: auto;
padding: 20px; color: white; text-align: center; border: 1px solid #ccc;
}
<div id="div_parent">
<div class="div_child">
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
When I need fluid width, I prefer using this method:
CSS
.background { display: table; width: 100%; height: 100%; position: absolute; left: 0; top: 0; }
.background > div { display: table-cell; vertical-align: middle; text-align: center; }
HTML
<div>
<div>
<p>Centered In The Middle Of The Page.</p>
</div>
</div>
Demo on jsfiddle.
Hope it works for you.
I am trying to create a div that is covers the browser window diagonally. See example here:
This is my CSS:
.shape {
height: 100%;
width: 150%;
transform: rotate(25deg);
}
This is my actual result:
I've tried a bunch of different things using transformOrigin and setting top and left of the div, but nothing seems to work to have this div centered diagonally across the browser.
You need to add these: transform-origin: center;
Also when width is more than 100% you need to move content its centered before rotate. Like Position: absolute; left: -25%;
body {
padding: 0px;
margin: 0px;
}
.frame {
width: 100vw;
height: 100vh;
background: #EFEFEF;
}
.rotated {
position: absolute;
left: -25%;
width: 150%;
height: 100%;
border: 2px solid blue;
transform: rotate(25deg);
transform-origin: center;
}
<div class='frame'>
<div class='rotated'></div>
</div>
Usually this code works, but for some reason it's not vertically centering within it's parent element. Could this be because of the background image?
http://jsfiddle.net/tmyie/BcmNw/
<div class="background-image">
<div class="omg-title">This is the title</div>
</div>
CSS:
.background-image {
background-image: url('');
height: 600px;
background-size: contain;
position: relative;
background-position: center;
background-repeat: no-repeat;
margin: 0 auto;
text-align: center;
}
.omg-title {
padding: 15px;
-webkit-transform: translate(-50%, -50%);
position: absolute;
}
Since you are using position: absolute you can remove transform and set the text to center with the following changes:
.omg-title {
top: 50%;
left: 50%;
position: absolute;
}
To perfect center horizontally you should know the width of the text, for example if it's 100px you should apply margin-left: -50px;
An example of the second solution http://jsfiddle.net/7ScDh/
If you just take away all of .omg-title's styling, it centers fine because .background-image has text-align:center;.
JSFiddle for proof
Remove the position and transform property and it will work for you:
.omg-title {
padding: 15px;
}
Try either of these, or remove absolute positioning:
1) center .omg-title div
.omg-title {
left: 50%;
position: absolute;
margin-left: -50px; // depending on width
}
2) give .omg-title div full width:
.omg-title {
width: 100%;
}
EDIT: For vertical allignment, try (demo here: http://jsfiddle.net/6E5as/):
.omg-title {
top: 50%;
position: absolute;
margin-top: -10px; // depending on height
text-align: center;
width: 100%;
}