I want to create an element in css and keep it at a constant right spacing from the main content.
for example:-
.main
{
padding: 0px 12px;
margin: 12px 8px 8px 8px;
min-height: 420px;
width: 924px;
height: 580px;
}
now I am creating an image that needs to be at a constant distance from the main content, and on its right hand side.
ie. say 100px from main content at all times, no matter the size of window:-
.NewElement {
width: 78px;
height: 70px;
position: fixed;
bottom: 550px;
right: .main.width() + 100px; <--- how do I represent this??
display: none;
text-indent: -9999px;
background: url('../xxx.png') no-repeat;
background-color: #000;
}
right: .main.width() + 100px; <--- how do I represent this correctly??
Place 'NewElement' within the 'main' DIV (assuming these are DIVs) and set the margin-left:100px, so it will always be relative to that main DIV.
<div class="main">
<div class="NewElement"></div>
</div>
Here's a fiddle.
You would have to use javascript or jquery to do this:
var width = $('.main').css('width');
$('.NewElement').css('width',width+100);
I'm trying to create a layout where there is a fixed width and fixed position sidebar on the left.
The problem is setting the width of the main content area - it stretches off the screen to the right. Here's what I've got:
<body>
<div class="left-sidebar">
sidebar
</div>
<div class="main-content">
main
</div>
</body>
CSS:
body {
position: relative;
}
.left-sidebar {
position: fixed;
top: 0;
left: 0;
width: 220px;
}
.main-content {
position: absolute;
top: 0;
left: 220px;
background: #f0f0f0;
width: 100%;
}
How can I have the main content div start at 220px from the left, but only fill the window width?
Try setting the main content to appear fully left but give it a margin-left to make room for the sidebar.
.main-content {
position: absolute;
top: 0;
left: 0px;
margin-left: 220px;
background: #f0f0f0;
width: 100%;
}
Edit:
I've had a bit of time now to try out the code. I suggested margin-left instead of padding-left because it fits better with what you want to do. Using margin gives you the option of putting a border around your content. Also, if you actually do want padding in the content you can set it as normal. if you used a padding to indent for the sidebar you'd have to add the 220px to whatever actual padding you wanted.
This is what I came up with to get it working with margins instead of padding.
body {
margin: 0;
padding: 0;
border: 0;
}
.left-sidebar {
position: absolute;
top: 0;
left: 0;
width: 220px;
border: 1px solid green;
}
.main-content
{
position: fixed;
top: 0;
left: 0px;
right: 0px;
margin-left: 220px;
background: #f0f0f0;
border: 1px solid red;
}
I also agree with the anser referencing dynamic drive. One of the best ways to learn CSS initially is to have a go with a working stylesheet and customise it for your needs. The big advantage is it will already be cross browser compatible. Just use Google to find a bit of inspiration.
I've got a bit of a css issue. I'm have a container div with a set size and an absolute position. Inside that I have an element of some kind and a div. the element can be a button or a input in my example. The button follows the rules and is 100% of the container, the input doen't follow the rules and is more than 100% of the container. Whats going on and how do I go about fixing it? jsfiddle - Click either widget to see its bounds.
CSS
.Object
{
position: absolute;
top: 10px;
left: 10px;
width: 100px;
height: 100px;
}
.Object .Cover, .Object button, .Object input
{
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
overflow: hidden;
z-index:0;
}
.Object button
{
padding: 2px;
}
.Object .Cover
{
cursor: move;
z-index:1;
}
HTML
<div class="Object" id="3b089a23-7732-e743-aea4-d9dcef359d4e" name="Unnamed Widget" style="height: 30px; "><div class="Cover"></div><input /></div>
<div class="Object" id="e1bc0640-e049-eda8-05ac-0a99c21c6fe1" name="Unnamed Widget" style="height: 30px; top: 10px; left: 210px; "><div class="Cover"></div><button data-click="">Unnamed Button</button></div>
The 104 px is caused by the box-model. When set to default it will take into account the borders and padding of the element, seeing as an input has default padding and borders (ipx in this case), it added up to 4 and made it "grow" out of its parent.
If you add box-sizing: border-box; to your input selector (I moved it to a standalone selector) and set your own border styles, it works as you desire :)
.Object input
{
box-sizing: border-box;
width: 100%;
height: 100%;
/*border: 0;
padding: 0;*/
border: 1px solid #ccc;
background-color: #eee;
}
http://jsfiddle.net/K5D9z/13/
Hope it helps.
Note: afaik IE6, 7 won't work as expected, but you can just use a conditional comment and set its width/height differently.
I am trying to make height auto. Whatever i tried did not work until now.
I am using masterpage, asp.net 4.0 ,css
Here the config
Here the css classes
*
{
margin: 0;
padding: 0;
}
.logo
{
height: 100px;
width: 1000px;
position: absolute;
top: 0px;
}
body, html
{
height: auto;
height: 100%;
}
.footer
{
visibility: hidden;
}
.MenuBarMasterPage
{
position: absolute;
top: 202px;
margin-left: auto;
margin-right: auto;
width: 1000px;
height: 40px;
}
body
{
background: #0C0C0C url(http://static.monstermmorpg.com/images/backgrounds/animus-mix.gif) repeat;
margin-right: auto;
margin-left: auto;
width: 1000px;
background-position: top center;
}
.main
{
position: absolute;
top: 242px;
width: 1000px;
background: #D1D1D1 url(http://static.monstermmorpg.com/images/backgrounds/content.png) repeat;
z-index: 2;
height: auto;
}
According to the firebug the computed style height of main is 0px this is the problem
To avoid having to manually set a different fixed height on each page (which is a terrible solution), you have two options:
Use JavaScript to calculate the height.
Don't use absolute positioning.
There is no reason to use absolute positioning for your layout. You should remove position: absolute from almost everything, and write new CSS.
You're going to need a lot of float: left and float: right.
If you're using Bootstrap 4 (Flex)
If your <img> is direct children of a div with display:flex, you might want to set display:block on parent div instead, so height:auto will work.
I would like to make a position: fixed; popup box centered to the screen with a dynamic width and height. I used margin: 5% auto; for this. Without position: fixed; it centers fine horizontally, but not vertically. After adding position: fixed;, it's even not centering horizontally.
Here's the complete set:
.jqbox_innerhtml {
position: fixed;
width: 500px;
height: 200px;
margin: 5% auto;
padding: 10px;
border: 5px solid #ccc;
background-color: #fff;
}
<div class="jqbox_innerhtml">
This should be inside a horizontally
and vertically centered box.
</div>
How do I center this box in screen with CSS?
If your div has a known width and height, then you basically need to set top and left to 50% to center the left-top corner of the div. You also need to set the margin-top and margin-left to the negative half of the div's height and width to shift the center towards the middle of the div.
position: fixed;
width: 500px;
height: 200px;
top: 50%;
left: 50%;
margin-top: -100px; /* Negative half of height. */
margin-left: -250px; /* Negative half of width. */
Or, if your div has a dynamic/undefined width and/or height, then instead of the margin, set the transform to the negative half of the div's relative width and height.
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
Or, if your div has at least a fixed width and you don't care about centering vertically and old browsers such as IE6/7, then you can instead also add left: 0 and right: 0 to the element having a margin-left and margin-right of auto, so that the fixed positioned element having a fixed width knows where its left and right offsets start. In your case thus:
position: fixed;
width: 500px;
margin: 5% auto; /* Will not center vertically and won't work in IE6/7. */
left: 0;
right: 0;
Again, this works only in IE8+ if you care about IE, and this centers only horizontally not vertically.
I want to make a popup box centered to the screen with dynamic width and height.
Here is a modern approach for horizontally centering an element with a dynamic width - it works in all modern browsers; support can be seen here.
Updated Example
.jqbox_innerhtml {
position: fixed;
left: 50%;
transform: translateX(-50%);
}
For both vertical and horizontal centering you could use the following:
Updated Example
.jqbox_innerhtml {
position: fixed;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
You may wish to add in more vendor prefixed properties too (see the examples).
Or just add left: 0 and right: 0 to your original CSS, which makes it behave similarly to a regular non-fixed element and the usual auto-margin technique works:
.jqbox_innerhtml
{
position: fixed;
width:500px;
height:200px;
background-color:#FFF;
padding:10px;
border:5px solid #CCC;
z-index:200;
margin: 5% auto;
left: 0;
right: 0;
}
Note you need to use a valid (X)HTML DOCTYPE for it to behave correctly in IE (which you should of course have anyway..!)
Add a container like:
div {
position: fixed;
bottom: 0;
left: 0;
width: 100%;
text-align: center;
}
Then put your box into this div will do the work.
Edit: as mentioned in the comments, the inner content needs to be set to display: inline-block assuming there're two divs like:
<div class="outer">
<div class="inner">
content goes here
</div>
</div>
Then the CSS for the inner needs to be:
.outer {
position: fixed;
text-align: center;
left: 0;
right: 0;
}
.inner {
display: inline-block;
}
Together with the outer div having a left: 0; right:0; and text-align: center this will align the inner div centered, without explicitly specifying the width of the inner div.
Just add:
left: calc(-50vw + 50%);
right: calc(-50vw + 50%);
margin-left: auto;
margin-right: auto;
Center fixed position element
(the simple & best way I know)
position:fixed;
top: 0; left: 0;
transform: translate(calc(50vw - 50%));
For centering it horizontally & vertically (if height is same as width)
position:fixed;
top: 0; left: 0;
transform: translate(calc(50vw - 50%), calc(50vh - 50%));
Both of these approaches will not limit centered element's width less than viewport width, when using margins in flexbox, inside centered element
#modal {
display: flex;
justify-content: space-around;
align-items: center;
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
}
inside it can be any element with diffenet width, height or without.
all are centered.
This solution does not require of you to define a width and height to your popup div.
http://jsfiddle.net/4Ly4B/33/
And instead of calculating the size of the popup, and minus half to the top, javascript is resizeing the popupContainer to fill out the whole screen...
(100% height, does not work when useing display:table-cell; (wich is required to center something vertically))...
Anyway it works :)
left: 0;
right: 0;
Was not working under IE7.
Changed to
left:auto;
right:auto;
Started working but in the rest browsers it stop working!
So used this way for IE7 below
if ($.browser.msie && parseInt($.browser.version, 10) <= 7) {
strAlertWrapper.css({position:'fixed', bottom:'0', height:'auto', left:'auto', right:'auto'});
}
I used vw (viewport width) and vh (viewport height). viewport is your entire screen. 100vw is your screens total width and 100vh is total height.
.class_name{
width: 50vw;
height: 50vh;
border: 1px solid red;
position: fixed;
left: 25vw;top: 25vh;
}
You can basically wrap it into another div and set its position to fixed.
.bg {
position: fixed;
width: 100%;
}
.jqbox_innerhtml {
width: 500px;
height: 200px;
margin: 5% auto;
padding: 10px;
border: 5px solid #ccc;
background-color: #fff;
}
<div class="bg">
<div class="jqbox_innerhtml">
This should be inside a horizontally and vertically centered box.
</div>
</div>
I just use something like this:
.c-dialogbox {
--width: 56rem;
--height: 32rem;
position: fixed;
width: var(--width);
height: var(--height);
left: calc( ( 100% - var(--width) ) / 2 );
right: calc( ( 100% - var(--width) ) / 2 );
top: calc( ( 100% - var(--height) ) / 2 );
bottom: calc( ( 100% - var(--height) ) / 2 );
}
It centers the dialog box both horizontally and vertically for me, and I can use different width and height to fit different screen resolutions to make it responsive, with media queries.
Not an option if you still need to provide support for browsers where CSS custom properties or calc() are not supported (check on caniuse.)
This one worked the best for me:
display: flex;
justify-content: center;
align-items: center;
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
To fix the position use this :
div {
position: fixed;
left: 68%;
transform: translateX(-8%);
}
simple, try this
position: fixed;
width: 500px;
height: 300px;
top: calc(50% - 150px);
left: calc(50% - 250px);
background-color: red;
One possible answer:
<!DOCTYPE HTML>
<html>
<head>
<meta charset="UTF-8">
<title>CSS Center Background Demo</title>
<style type="text/css">
body {
margin: 0;
padding: 0;
}
div.centred_background_stage_1 {
position: fixed;
z-index:(-1 );
top: 45%;
left: 50%;
}
div.centred_background_stage_2 {
position: relative;
left: -50%;
top: -208px;
/* % does not work.
According to the
http://reeddesign.co.uk/test/points-pixels.html
6pt is about 8px
In the case of this demo the background
text consists of three lines with
font size 80pt.
3 lines (with space between the lines)
times 80pt is about
~3*(1.3)*80pt*(8px/6pt)~ 416px
50% from the 416px = 208px
*/
text-align: left;
vertical-align: top;
}
#bells_and_wistles_for_the_demo {
font-family: monospace;
font-size: 80pt;
font-weight: bold;
color: #E0E0E0;
}
div.centred_background_foreground {
z-index: 1;
position: relative;
}
</style>
</head>
<body>
<div class="centred_background_stage_1">
<div class="centred_background_stage_2">
<div id="bells_and_wistles_for_the_demo">
World<br/>
Wide<br/>
Web
</div>
</div>
</div>
<div class="centred_background_foreground">
This is a demo for <br/>
<a href="http://stackoverflow.com/questions/2005954/center-element-with-positionfixed">
http://stackoverflow.com/questions/2005954/center-element-with-positionfixed
</a>
<br/><br/>
<a href="http://www.starwreck.com/" style="border: 0px;">
<img src="./star_wreck_in_the_perkinnintg.jpg"
style="opacity:0.1;"/>
</a>
<br/>
</div>
</body>
</html>
Try using this for horizontal elements that won't center correctly.
width: calc (width: 100% - width whatever else is off centering it)
For example if your side navigation bar is 200px:
width: calc(100% - 200px);
This works wonderfully when you don't know the size of the thing you are centering, and you want it centered in all screen sizes:
.modal {
position: fixed;
width: 90%;
height: 90%;
top: 5%; /* (100 - height) / 2 */
left: 5%; /* (100 - width) / 2 */
}
What I use is simple. For example I have a nav bar that is position : fixed so I adjust it to leave a small space to the edges like this.
nav {
right: 1%;
width: 98%;
position: fixed;
margin: auto;
padding: 0;
}
The idea is to take the remainder percentage of the width "in this case 2%" and use the half of it.
Had this problem so I concluded that using a (invisible) container is the best option (based on answer #Romulus Urakagi Ts'ai). To make it with flexbox:
.zoom-alert {
position: fixed;
justify-content: center;
display: flex;
bottom: 24px;
right: 0;
left: 0;
z-index: 100000;
width: 100%;
&__alert {
flex: 0 0 500px;
padding: 24px;
background-color: rgba(212, 193, 105, 0.9);
border: 1px solid rgb(80, 87, 23);
border-radius: 10px;
}
}
(the syntax is SCSS but can be easily modified to pure CSS)
Center element of a div with the property of
position:fixed
Html and Css code
.jqbox_innerhtml {
position: fixed;
width:100%;
height:100%;
display: flex;
justify-content: space-around;
align-items: center;
left: 0;
top: 0;
width: 100%;
height: 100%;
border: 5px solid #ccc;
background-color: #fff;
}
<div class="jqbox_innerhtml">
This should be inside a horizontally
and vertically centered box.
</div>
Another simple solution is to set the width of the element to fit-content and set the left and right to 0px;
width: fit-content;
position: fixed;
left: 0px;
right: 0px;
This is useful if you don't know the width of the element.
The only foolproof solution is to use table align=center as in:
<table align=center><tr><td>
<div>
...
</div>
</td></tr></table>
I cannot believe people all over the world wasting these copious amount to silly time to solve such a fundamental problem as centering a div. css solution does not work for all browsers, jquery solution is a software computational solution and is not an option for other reasons.
I have wasted too much time repeatedly to avoid using table, but experience tell me to stop fighting it. Use table for centering div. Works all the time in all browsers! Never worry any more.