Prevent a div to overlap over a fixed one - css

I want to create a webpage that has a fixed part at the bottom and, at the top, a part that will be filled dynamically with content, this dynamic part should have a scroll bar should the added content not fit, in order to stay above the fixed part.
style.css:
.action-box{
position: fixed;
bottom: 15px;
margin-top: 10px;
width: 100%;
}
index.html:
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div>
<!-- this will be filled with content -->
</div>
<div class="action-box">
<!-- this is the fixed part -->
</div>
</body>
</html>
You can see in this fiddle that the two divs overlap.
How can I make the first div scrollable, so that it won't slide over or below the last div?

I'll propose using dynamic resizing, depending on window height:
Here is jQuery example:
function adjustBlocks() {
var winH = $(window).height();
var boxH = $('#action-box').height();
$('#content').height((winH - boxH) + 'px');
}
$(document).ready(adjustBlocks);
$(window).resize(adjustBlocks);
Sample HTML:
<div id="content"></div>
<div id="action-box"></div>
And sample CSS:
#content{
width: 100%;
background: #eee;
overflow-y: scroll;
}
#action-box{
width: 100%;
background: #ffccaa;
}
Of course, you can easily add any margins and mention them in jQuery resizing function.
Oh, and the example on jsfiddle

The easiest way is to apply margin-bottom to the div on top that matches the total height of the fixed div at the bottom, and you have to give the div at the bottom a height along with a background color so the other div doesn't show through.
.action-box{
position: fixed;
bottom: 0px;
height: 20px;
padding-bottom: 10px;
width: 100%;
background-color: white;
}
.content {margin-bottom: 50px}​
http://jsfiddle.net/RdGXt/151/

Give it a css class with a fixed height and overflow: scroll;

Related

div fill remaining height css

I have this code:
HTML:
<body>
<div id="menu">
menu elements...
</div>
<div id="main">
Main website content...
</div>
</body>
CSS:
body{background-color:CCCCFF;}
div#menu{background-color:#000000;display:table;height:45px;}
div#main{background-color:#FFFFFF;border-radius:10px;margin:10px;}
The menu div is a horizontal menu bar.
I want the main div fill the whole page (except the menu). Also when it is needed it should fill more space (example: if it has a lot of content). I don't want to use any javascript or the calc() method of CSS.
Is it possible to do what I want?
Thank you for your time!
Yes, you can add to your CSS:
html, body {
height: 100%;
}
and than your div will correctly use height attribute with %. You can add bottom, left, right, top attributes:
div#main {
position: absolute;
overflow: auto;
bottom: 5px;
top: 50px;
left: 5px;
right: 5px;
}
check margins and paddings.
If you can use javascript, that's may be interesting to use
height: auto;
max-height: 300px; /*calculated value on resize and load*/

CSS3: How can I set middle DIV to maximum height?

I want to use three <div> areas on my web page: Header, Content and Footer.
The Footer <div> is supposed to stick to the bottom of the web page.
The Header <div> is supposed to stick to the top of the page.
The Content <div> is supposed to fill the whole area in the middle of the page.
So this is the basic layout:
<body>
<div id="header"></div>
<div id="content"></div>
<div id="footer"></div>
</body>
For the Footer to stay down the page I added
#footer
{
position: fixed;
bottom: 0;
}
For the Content <div> I'm using a background image, scaling exactly to the div element's dimensions:
#content
{
background: url("Bilder/Bild.png") center contain no-repeat black;
}
Now I want the Content <div> to be exactly the remaining height of the ViewPort between Header and Footer without adding any JavaScript, no matter what content is later added to the Content <div>.
How can I do that in CSS3?
If the size of footer and header is known, you can use calc(). So assuming both take 100px together, this should work:
html, body { height: 100%; }
#content {
height: calc( 100% - 100px );
}
Be aware, though, that old browsers do not support this. Also have a look at the compatibility table for the prefixes that might be needed.
Example Fiddle
you could use something like this. it will allow you to keep your positions in a range of resolutions.
#header {
position: fixed;
height: 10%;
}
#content {
position: fixed;
height: 80%;
top: 10%;
}
#footer {
position: fixed;
bottom: 0px;
height: 10%;
}
check it out here

Center Message box on Any Screen Resolution

Please Help me to center the message box on fit on any screen resolution..
can you show what css or style, margins, left, right,that I can use?
Center Horizontally
To center a div horizontally you can use margin: auto auto; width: 500px where the width is any width you want it to be.
JS Fiddle
HTML:
<div id="content">
Some content
</div>
CSS:
#content {
width: 200px;
margin: auto auto;
background-color: #CCC;
}
Center screen with fixed dimensions
If you can fix the content height and width then it's possible to center the div both horizontally and vertically using just css. This is achieved by wrapping your content in another div, then positioning your content div's top: 50% and then subtracting half the height of it's margin from it: margin-top: -100px, assuming the height was 200px. See example below:
JS Fiddle.
HTML:
<div id="wrapper">
<div id="content">
Some content
</div>
</div>
CSS:
#wrapper {
position: relative;
background-color: #EEE;
width: 200px;
height: 200px;
font-size: 10px;
}
#content {
position: absolute;
top: 50%;
left: 50%;
width: 80px;
height: 80px;
margin-top: -40px;
margin-left: -40px;
background-color: #DDD;
}
Pretend it's vertically centered
Also you can give a fixed margin-top (or top with position: absolute) to make it seem vertically centered in most desktop and laptop screens.
JS Fiddle
HTML:
<div id="content">
Some content
</div>
CSS:
#content {
width: 200px;
margin: 100px auto;
background-color: #CCC;
}
Use Javascript
It is not possible to vertically center content with arbitrary height using just css. In this case you will need to use Javascript to position the div.:
The basic idea is:
you calculate the height of the content at the time you need to show the content, or when the content is loaded.
Then change any of the many css properties to position the div at the vertical center.
My personal preference is you to use position: absolute with top property. You can also use margin-top but you probably don't want this div to take up space in the box model if you have other content on the page.
JS Fiddle
<html>
<head>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script type="text/javascript">
$(function() {
var windowWidth = document.documentElement.clientWidth;
var windowHeight = document.documentElement.clientHeight;
var el = $('#content');
var elWidth = el.width();
var elHeight = el.height();
el.css({
position: 'absolute',
top: (windowHeight / 2) - (elHeight / 2),
left: (windowWidth / 2) - (elWidth / 2),
});
});
</script>
<style>
#content {
width: 200px;
height: 200px;
background-color: #CCC;
}
</style>
</head>
<body>
<div id="content">
Some content
</div>
</body>
</html>
Use any of the many Javascript "plugins" available
There is a multitude of CSS frameworks around the web that provide boilerplate CSS that we use on most websites. And some of these also help with these kind of common presentation issues with small Javascript plugins. Personally I know that Twitter Bootstrap provides a Modal plugin which you can use for this purpose. There is also many jQuery plugins for the sole purpose of centering content in a page.
Conclusion
Although there is a multitude of options to achieve this, I it sad to see that CSS still does not support doing this. Maybe it's a hard thing to do across different scenarios, I don't know. From the options that I mention above, I think the Javascript option is the most versatile, and with todays browser speeds, and the likeliness that nobody would have Javascript disabled on their browser, this would be the best way to go.
I just saw this after reading about how to do one on a CSS Techniques page.
Basically, define a little CSS:
.Absolute-Center {
margin: auto;
position: absolute;
top: 0; left: 0; bottom: 0; right: 0;
}
ADVANTAGES:
Cross-browser (including IE8-10)
No special markup, minimal styles
Responsive with percentages and min-/max-
Use one class to center any content
I have not had time to test it out, but I wanted to post it up here in the hope that it helps others.
Here is what you are searching for http://tutorialzine.com/2010/03/centering-div-vertically-and-horizontally/
You can easily make it with jquery! Or with an css solution given on this site!
You should give us your code that you have tried. Assume that you have HTML code like below:
<div id="message">
Hello World!
</div>
CSS code:
#message {
width: 100px;
height: 100px;
margin: 50px auto;
}
Then your message box will be 100x100 and 50px from the top of the screen and automatically aligns to the center of the screen.

Footer in positioning other than absolute or fixed?

I've set up my problem here.
I have 2 divs, each outlined with a black border. One is my content div (containing text), with height set to 600px; The other div, containing a banner image, I'd like to use as my page's footer. I am able to do this in absolute positioning by simply marking the div with "bottom: 25px." However, what I'm hoping to do is to make the footer div "stop" when it collides with the content div as you shrink the size of your browser window.
Any ideas? Thanks much in advance!
Here's how I do it. Got the technique from http://ryanfait.com/sticky-footer/. He adds an extra "push" div but I used the wrapper's padding bottom to serve the same function (no need for empty DIVs).
Here's an example (you can view it at http://ve.savantcoding.com/example.html)
<html>
<head>
<title>sample footer</title>
<style type="text/css">
* {
margin: 0;
}
html, body {
height: 100%;
}
#wrapper {
min-height: 100%;
height: auto !important;
height: 100%;
margin: 0 auto -200px; /* bottom margin is negative footer height */
}
#content {
padding-bottom: 200px /* bottom padding is footer height */
}
#footer {
height: 200px;
}
</style>
</head>
<body>
<div id="wrapper">
<div id="content">your content</div>
</div>
<div id="footer">your banner</div>
</body>
</html>

CSS div positioning

I have div that contains 2 divs in it. One of the child divs has static height 2em, and I want the other one to vertically fill the rest of the space of the parent div. How do I do this?
Edit: I need the parent div to fill the screen.
This depends on exactly what you want to achieve. Getting a fixed top and variable bottom where the container is only as large as it needs to be for the two children.
Assuming:
<div id="parent">
<div id="top"></div>
<div id="bottom"></div>
</div>
use:
#top { height: 2em; }
and the bottom div will be as large as it needs to be. You can make the bottom fixed height and achieve the same thing.
But I suspect what you want to do is have the outer div fixed height (say 100%). That gets much harder. The problem is that there is no way in CSS of saying "height of 100% minus 2em" without using an (ill-advised) CSS expression.
One approach is to overlay the top with the bottom.
#outer { position: relative; }
#top { position: absolute; height: 2em; top: 0; left: 0; width: 100%; }
#bottm { height: 100%; padding-top: 2em; }
The top div actually overlays the bottom. This is fine so long as you don't want a border.
You can use Faux Columns if you're using an image for the background or just move the background color back to #parent to give the appearance of filling the screen with the #bottom div. It would fill the page by giving it a 100% height (as long as html and body also get height: 100%).
Example:
<head>
<title>TITLE</title>
<style type="text/css">
html, body { height: 100%; margin: 0; padding: 0; }
#parent { height: 100%; background: #f08; }
#top { height: 2em; background: #80f; }
</style>
</head>
<body>
<div id="parent">
<div id="top">TOP DIV</div>
<div id="bottom">THE REST</div>
</div>
Since CSS is just about styling, giving the appearance of 100% height is the same as having 100% height. Right?

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