Redesigning my website, in my CSS I have a div of height: 200px; then an image under it with a height: 532px; then lastly a div of height: 100%;.
The last div is not filling the rest of the page, is there something I'm doing wrong?
P.S. - All divs are in a container. All containing divs have height: 100%;
I have since changed it, so I no longer require this.
First, you need to set the height of html and body to 100%.
Then if you want to cover the rest of the page with that div you should do something like:
div{
height: -moz-calc(100% - 732px); //732 = 200 + 532
height: -webkit-calc(100% - 732px);
height: calc(100% - 732px);
}
Hope this will help....
You really need to post your html.
I suspect that the problem you are having though could be solved by setting the height of the html and body tags to be 100% too. Like :
html, body{
height:100%;
}
If the div did indeed obey the height: 100%, it would have the same height as the container, conflicting with the elements above it.
Without using Javascript to compute the height, or note widely supported modern CSS extensions, you must fall back to absolute positioning. The only down side is you must manually enter the top of it.
http://jsfiddle.net/NnD2u/
<div class="container">
<div class="child1"></div>
<div class="child2"></div>
</div>
.
.container { height: 500px; background-color: Yellow; }
.child1 { height: 200px; background-color: Green; }
.child2 { background-color: Red; }
.container { position: relative; }
.child2 { position: absolute; bottom: 0; left: 0; top: 200px; right: 0px; }
Related
is there any way to make single page website without position absolute? Because when I want to variable height of containers, absolute position is little bit awkward. I mean when I insert more content to one container, the other above it should move down. I've tried position static and relative, but it didn't work for me.
Now my css looks like:
<style>
#header {position: absolute; top: 0; left: 0; width: 100%; height: 20%;}
#main {position: absolute; top: 20%; left: 0; width: 100%; height: 80%;}
#about {position: absolute; top: 100%; left: 0; width: 100%; height: 100%;}
#contact {position: absolute; top: 200%; left: 0; width: 100%; height: 50%;}
</style>
<body>
<div id="header">
content....
</div>
<div id="main">
content...
</div>
<div id="about">
long content which is covered with next div, because its "top" atribute settings
</div>
<div id="contact">
div which covers previous one's end
</div>
But when some container needs to be longer, problem is here..
Thanks for any help!
That depends on the style of your website. Of course you can set up anchors and have a one-page scrolling website, but I don't think that answers your question.
My suggestion is to try using absolute positioned elements as containers, and have your actual template inside them.
It would help if you provided some actual code or a specific issue you're having, as it's currently too vague.
I'll provide an answer to what I think you might be asking, though it isn't clear. I hope this isn't too basic.
Ditch the position property altogether.
Just have a div (which is by default 100% width) as your header at the top of your html. The content should be in another div below that.
Divs by default have 100% width, and their height is dependent on the height of their content. They will grow to accommodate taller content. These behaviors are because they have the property display:block .
You've used % which, if I remember correctly, is relative to the parent element. vh (viewport height) is relative to the height of the screen (100vh is the full height of the screen).
I added the background-color just so it's easier to see.
<style>
#header {
background-color: #777;
height: 20vh;
}
#main {
background-color: #999;
height: 80vh;
}
#about {
background-color: #777;
height: 100vh;
}
#contact {
background-color: #999;
height: 50vh;
}
</style>
I'm trying to achieve the following with CSS:
I want a fixed sidebar with navigation, so that when you scroll down, the sidebar stays in it's place. The remaining space on the right should be filled up with my content, as if it were the body at 100%.
However, my problem is that the right part takes exactly 300px more space on the right, resulting in a horizontal scroll bar.
I can't fid a solution on my own, can anybody help me? Thanks a lot! :)
JSFIDDLE: http://jsfiddle.net/ALGpP/4/
nav {
height: 100%;
width: 300px;
position: fixed;
z-index:99;
}
#wrapper {
overflow: hidden;
position: absolute;
width: 100%;
margin-left:300px;
}
Do you mean something like this?
I gave the #wrapper element some new CSS properties:
height: 1200px;
background-color: red;
The height: 1200px is in this case just for testing, to make the page longer.
The background-color: red is also just for testing to make it more visible.
Your nav element i have given the following css properties:
height: 100%;
width: 20%;
position: fixed;
background-color: green;
The height: 100% is used to make the element fill the page in the height
The width: 20% is used to make it 20% width.
The position: fixedis to make the element stick to a certain point at the page.
The background-color is used for testing, so you can see better what you're doing.
Also, i reccomend using a CSS reset. This is a really simple one im using in the fiddle:
* {
margin: 0;
padding: 0;
}
It basicly selects all elements and gives it a margin and padding of 0.
If you want the nav element to be 300px wide, use this fiddle.
Fix for the content that wasnt showing
Add the following properties to your #wrapper element:
width: calc(100% - 300px);
float: right;
So it looks like this:
#wrapper {
width: calc(100% - 300px);
height: 1200px;
background-color: red;
float: right;
}
Demo here
I want to have a site that is 100% of the height of the browser at all times, with the width scaling with an aspect ratio when the height is changed.
I can achieve this using the new vh unit: http://jsbin.com/AmAZaDA/3 (resize browser height)
<body>
<div></div>
</body>
html, body {
height: 100%;
width: 100%;
margin: 0;
}
div {
height: 100%;
width: 130vh;
margin: 0 auto;
background: #f0f;
}
However, I worry about fallback for IE8 and Safari, as it this unit is not supported there.
Are there any other CSS only methods of achieving this effect?
I have a solution that works also with IE8 (using Pure CSS 2.1), but not perfectly.
because I need the browser to recalculate things when he get resized, and apparently it doesn't do that unless he has to (and I cant find a way to make him think he has to), so you will have to refresh the page after resizing.
as far as I know, the only element that can scale reserving his ratio is an <img>, so we will use the <img> to our advantage.
SO, we are going to use an image with the ratio that we want (using the services of placehold.it), lets say we want a 13X10 ratio (like in your example), so we'll use <img src="http://placehold.it/13x10" />.
that image will have a fixed height of 100% the body, and now the width of the image scales with respect to the ratio. so the width of the image is 130% height of the body.
that image is enclosed within a div, and that div has inline-block display, so he takes exactly the size of his content. witch is the size you want.
we remove the image from the display by using visibility: hidden; (not display:none; because we need the image to take the space), and we create another absolute div, that will hold the actual content, that will be right above the image (100% width and 100% height of the common container).
That works perfectly when you first initiate the page, but when you resize the page, the browser doesn't always measure the right width and height again, so you'll need to refresh to make that happened.
Here is the complete HTML:
<div class="Scalable">
<img class="Scaler" src="http://placehold.it/13x10" />
<div class="Content"></div>
</div>
and this simple CSS:
html, body, .Content
{
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
body
{
text-align: center;
}
.Scalable
{
position: relative;
display: inline-block;
height: 100%;
}
.Scaler
{
width: auto;
height: 100%;
margin-bottom: -5px;
visibility: hidden;
}
.Content
{
position: absolute;
top: 0;
background-color: black;
}
Here's a Fiddle (don't forget to refresh after resizing)
I recommend you to copy this code to your local machine and try it there rather then within the fiddle.
In this similar SO question a CSS technique was found and explained on this blog entry that allows an element to adjust its height depending on its width. Here is a repost of the code:
HTML:
<div id="container">
<div id="dummy"></div>
<div id="element">
some text
</div>
</div>
CSS:
#container {
display: inline-block;
position: relative;
width: 50%;
}
#dummy {
margin-top: 75%; /* 4:3 aspect ratio */
}
#element {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
background-color: silver /* show me! */
}
Demo Here
If this is sufficient for you, I'd recommend this technique. However, I'm unaware if the technique can be adapted to handle scenarios where you must have an element adjust its width depending on its height.
You can do it with the help of padding on a parent item, because relative padding (even height-wise) is based on the width of the element.
CSS:
.imageContainer {
position: relative;
width: 25%;
padding-bottom: 25%;
float: left;
height: 0;
}
img {
width: 100%;
height: 100%;
position: absolute;
left: 0;
}
So I have three div's
One parent and two child.
The parent is as follows:
#parent {
overflow:auto;
margin: 0 auto;
margin-top:37px;
min-height: 100%;
width:875px;
}
the two child divs are as follows
#child1 {
overflow:auto;
min-height:150px;
border-bottom:1px solid #bbb;
background-color:#eee;
opacity:0.4;
}
#child2 {
height:100%;
background-color:white;
}
The parent div extends 100% as I can see the borders of it till the end of the page but the child2 is not extending down to the end of the page like the parent div.
height doesn't behave the way you seem to be anticipating. When you specify height: 100% that percentage is calculated by looking up the DOM for the first parent of said element with a height specified that has absolute or relative positioning.
You can cheat when it comes to the body tag, so if you had something like this:
<body>
<div style="height: 100%">
</div>
</body>
Some browsers/versions will behave the way you expect by taking up the total height of the page. But it won't work when you go any deeper than that.
Here is the approach I use to strech a div to the bottom of the page, it involves absolute positioning (nice thing about this one is that it is pretty cross-browser compliant and doesn't require javascript to pull it off):
<div id="parent">
<div id="childNorm"></div>
<div id="childStrech"></div>
</div>
#parent
{
position: absolute;
width: 1000px;
bottom: 0;
top: 0;
margin: auto;
background-color: black;
}
#childNorm
{
position: absolute;
width: 1000px;
top: 0;
height: 50px;
background-color: blue;
color: white;
}
#childStrech
{
position: absolute;
width: 1000px;
top: 50px;
bottom: 0;
background-color: red;
color: white;
}
Here is a Jsfiddle for demo: http://jsfiddle.net/t7ZpX/
The trick:
When you specify absolute positioning and then put in bottom: 0; that causes the element to stretch to the bottom of the page; You just have to worry about positioning the elements as a trade off.
Yes, this is one of the annoying things in css. min-height is not considered a "height" for purposes of calculating height. See http://jsfiddle.net/3raLu/3/. You need to have height: 100% on the parent div to make the child full height. Or, if you can have it be absolutely positioned, then this works: http://jsfiddle.net/3raLu/6/.
I have a page with a variable-height header, content area, and footer. I want the content area to always fill the viewport, and grow vertically to fit content as necessary. I've found lots of examples of doing this with fixed-height headers, but none where the height is unknown.
Any solution needs to work in IE 6, 7 and 8, Firefox 3.x and Safari 4. Can this be done with pure CSS? Do I have to give in and resort to table-based layout?
EDIT:
An additional requirement is that I can place elements inside the content area and get them to expand to the full height of the content area (be it viewport height - header height - footer height or larger than that). Some of the content we want to display has "header" and "footer" sections of their own, so what I'm really looking for is a nestable solution.
Ok so the min-height CSS property doesn't work :)
I played around with an actual HTML file now and I believe I found a way.
.header-footer
{
height: 10%;
background-color: lightYellow;
display: table;
width: 100%;
}
.container
{
margin-left: auto;
margin-right: auto;
height: 80%;
width: 100%;
display: table;
}
.inner
{
background-color: lightPink;
height: 100%;
}
We use the display: table property to make sure each <div> sits nicely under and over the other ones.
NOTE: You have to set a height property for each of the elements on the page. It doesn't have to be as large as 10% that I chose, but at least something. Once the content is inserted into the element that is larger than the height value it should expand.
I've created two seperate HTML pages for you to examine to see if this suits you:
Content not larger than the viewport
Content larger than viewport
Hopefully this is what you're looking for.
Thanks
if you want the header to change size, use a relative height. The content will already fill the viewport vertically.
You can try using the min-height CSS property on the header, content and footer.
e.g.
.header-footer
{
min-height: 20%;
}
.content
{
min-height: 80%;
}
Make sure that you set both <html> and <body> tags to have a min-height: 100% that way you can fill up the entire viewport.
This should allow for the page to expand as needed but stay at a minimum of 100%.
Thanks
I spent a day experimenting with this option and hit so many odd dead-ends that my professional advice is now this:
You designed it wrong.
Skip the variable height header entirely. It's a dumb idea anyway. I did. Worked great for me. Now I am the proud owner of a significantly simpler DOM cobweb and no hurdles that lead me to stackoverflow.
Please see this fiddle: http://jsfiddle.net/qH6K3/
<div id="a">
<div id="b1">BOX1</div>
<div id="b2">BOX2</div>
</div>
* {
box-sizing: border-box;
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
}
html,body{height:100%}
#b1 {
background-color: red;
height: 45px;
width:100%;
}
#b2 {
background: blue;
height: 100%;
width: 100%;
}
#a { height: 100%; padding-bottom: 45px; }
Please try this for CSS: http://jsfiddle.net/K64Mm/6/
Variable height, content 100% height (supports even iframe 100% height), no superfluous scrollbars, scrollable on touch devices.
<div class="wrapper">
<div class="top topBar">
</div>
<div class="content">
<iframe scrolling="yes" src="http://www.zeffirino.com"></iframe>
</div>
</div>
html, body { width: 100%; height: 100%; overflow: hidden; margin: 0px; padding: 0px; }
.wrapper { width: 100%; height: 100%; padding-bottom: 45px; -webkit-overflow-scrolling: touch !important; box-sizing: border-box; -moz-box-sizing: border-box; -webkit-box-sizing: border-box; }
.top { height: 45px; background-color: red; }
.content { height: 100%; width: 100%; overflow: auto !important; }
.content iframe { display: block; border: none; width: 100%; height: 100%; }