I am trying to have a header div inherit it's width from it's parent.
The header div is position fixed.
However, as you can see in the simple PLNKR i've created here:
http://plnkr.co/edit/wxcvssALhjxtzc7J4w3V
it is actually wider than it's parent element, which is very weird.
The html looks like this:
<div class="category-body">We are in the category-body
<div class="category-header">We are in the category-header</div>
</div>
And the CSS looks like this:
.category-body {
margin-left: 17% !important;
width: 67%;
background-color: red;
height: 500px;
}
.category-header {
position: fixed;
top: 51px;
width: inherit;
background-color: green;
}
Any ideas why this is happening? And, of course, how to fix it?
You are not using a reset css sheet so probably the browser's body margin by default is messing with your code. It will affect your parent as the position is static but it will NOT affect your fixed child as fixed elements get out of the html flow.
just add:
html, body {margin:0;}
FIDDLE
Related
I am trying to align a div on top of my image. Horizontal alignment works fine, vertical offset however doesn't. Also, the background-color of #studentenlijn is not applied.
HTML Snippet:
<div id="container">
<div id="studentenlijn">STUDENTENLIJN</div>
<img src="http://lsvb.nl/s/lsvbheader.jpg" class="banner" />
</div>
Relevant CSS
#studentenlijn {
width: 10%;
height: 10%;
position: absolute;
top: 30%;
left: 72%;
background-color: #660000;
}
JSFiddle: http://jsfiddle.net/YGeLA/
Any ideas?
Your body had a height of 0, thus affecting the height of the containers within it when you try to specify a percentage height. Another problem was that you had a floating image within your container div, and thus you need to hide the overflow in order for the container to properly calculate the heights of elements within.
I have made some minor changes to your fiddle here:
http://jsfiddle.net/YGeLA/1/
I added:
height: 100%; to the body element
overflow: hidden; to #container which forces the container to respect the height of all elements within it.
The size of your div is:
#studentenlijn {
width: 10%;
height: 10%;
}
So it'll be a % of the parent element. The parent element, your container, is:
#container {
width: 100%;
height: 100%;
}
At this point, your browser can't determine which size should have your block.
So you won't be able to center it (Since you can't center an element which have not a browser-determined size).
You can't see the background-color for the same reason. It is applied, but you won't see your colored block because his size is 0.
Try to solve it, and it would be easier to center your div. In case it doesn't help you, edit your post with your modification :)
the container height is 0px. so you can't give height 100%
you have to set height in px
look at this update
#container {
position:relative;
width:100%;
height:100%;
line-height: 0;
}
.banner {
width:100%;
}
#studentenlijn {
width:200px;
height:30px;
position:absolute;
top:35px;
left:72%;
background-color:#660000;
line-height:30px
}
http://jsfiddle.net/YGeLA/2/
I am working on Bootstrap theme where its responsive. I disable the responsiveness on a child theme by adding a code in functions.php. All works well , no problem.
Now the parent container, is now fixed:
HTML:
<div class="container">
CSS:
.container{width: 940px;}
But I would like the footer section to have sitewide background color. How do I able to do this?
I have tried setting different methods like width:auto, width: 200% ,but its not giving me the desired result.
Supposing this is the footer section:
<footer>
My footer
</footer>
My attempted CSS on a child theme(not working)
footer {
background: #CCCCCC;
width:100% !important;
position:absolute !important;
}
Also is this possible without setting too many !important on CSS property? Thanks.
If your footer is inside the div.container which has width:940px; then giving your footer 100% width will make it 940px wide.
You need to have the footer outside the container to give it 100% width of the body.
When you give 100% width, the element gets its container's width. So in your code, even with the important keyword, it'll get the container's width (because that what 100% is supposed to do).
Just take the footer outside of the container.
Then it'll work and you won't need this !important keyword.
As others have mentioned, removing the footer from the parent container of .container will allow the width of it to be the entire size of the viewport/document.
If you are unable to change this level of structure of the HTML due to your template, you can fake the width using pseudo-elements, like so:
footer {
position: relative;
background-color: lightblue; /* Match the color of the body background */
}
footer::before, footer::after {
content:"";
position: absolute;
top: 0;
bottom: 0;
width: 9999px;
/* some huge width */
background-color: inherit;
}
footer::before {
right: 100%;
}
footer::after {
left: 100%;
}
See jsFiddle.
Taken from CSS Tricks: Full Browser Width Bars
I am trying to get a div, which is a child of #map-canvas, in front of the map.
At first, I changed the name of the parent to #maps-canvas, so the map wouldn't appear anymore.
I changed different CSS parameters and it worked perfectly. Then I changed the div back to #map-canvas (I also changed the id in my CSS file), so the map would appear again.
Interestingly, the child div disappeared. Then I added a z-index (child: 100, parent: 1), but still no change.
Here's the code:
HTML <div id="map-canvas">
<div id="TEXT13"></div>
</div>
CSS #map-canvas
width:100%;
height:93%;
top:7%;
z-index:1;
CSS #TEXT13
top: 70%;
left:40%;
height: 30%;
width: 20%;
background-color: blue;
border: 1px solid black;
position:relative;
z-index: 900;
Am I doing something wrong or is the Google-code preventing the div to be in front of the map?
"You cannot place elements inside a canvas (and have both displayed); they are only displayed if the browser does not understand the canvas element."
Placing a <div> within a <canvas>
You'd have to implement something like Andys answer to get the same effect. (Absolute positioning)
I would suggest that instead of putting the element inside #map-canvas as a child, you put it before #map-canvas as an absolute positioned element. Then set the z-index above the #map-canvas. This will allow it to act as an overlay on top of the map.
Css example:
#something_you_want_on_top_of_map {
width: 300px; /* set to same size as map */
height: 300px;
position: absolute;
z-index: 100;
}
Html example:
<div id="something_you_want_on_top_of_map">content...</div>
<div id="map-canvas"></div>
Hope that helps!
I am trying to set the width of the .full_height_div element using pure css, based on its height. It has to be width-relative-to-height, and not height-relative-to-width. The reason for this is that the parent container (.set_rectangle_height) is already a div with height relative to the page width. Obviously, as the page is resized the divs on the page will resize, so i cannot set a fixed width in px for the .full_height_div child.
So .rectangle and .set_rectangle_height make up the parent container which has a width as a percentage of the page and a height relative to this width. See here for an explanation for this method.
But the problem is that then I want to place a div inside the parent with height: 100% and width relative to this height. The aim is then that I will be able to alter the browser window size and everything will keep its aspect ratio.
here is my failed attempt:
.rectangle
{
position: relative;
width: 30%;/*the outermost div is always a % of the page
width, even while resizing*/
display:inline-block;
background-color: green;
}
.set_rectangle_height
{
padding-bottom: 30%;/*this sets the height of the outermost div
to a ratio of 1:3*/
position: relative;
float: left;
width: 100%;
height: 100%;
}
.full_height_div/*this is the div that i want to have a width relative
to its height*/
{
height: 100%;
width: 20px;/*i will delete this once .square_set_width is working*/
position: absolute;
background-color: red;
}
.square_set_width
{
display: inline-block;
padding-left: 100%; /*i want to use something like this line to set
the width of this div to be equal to .full_height_div's height - ie a 1:1 aspect
ratio, but padding-left does not work :( */
position: relative;
height: 100%;
background-color: blue;
}
<div class='rectangle'>
<div class='set_rectangle_height'>
<div class='full_height_div'>
<div class='square_set_width'></div>
</div>
</div>
</div>
So, this is what the above incorrect markup looks like:
And this is what i want it to look like:
I know I could find the blue square percentage height in javascript, then set the width to be equal to this height, but it would be really handy if there is a pure css fix for what I am trying to do. I will be using this structure a lot and I don't really want to go writing code to resize all the divs on my page.
you have to use javascript for that. If I understood you, you want a perfect blue square. Use
var height = $('.square_set_width').height();
$('.square_set_width').css('width',height);
here is a jsfiddle: http://jsfiddle.net/a8kxu/
Edit: instead of doing padding-bottom: 30% do height: 70% instead. Here is another fiddle: http://jsfiddle.net/a8kxu/1/
Edit #2: Sorry, but you cant use css to do this. Its not powerful enough
If i understand you correctly
you can do
#divID {
width: 75%;
margin-left: auto; // this is used to center the container
margin-right: auto;// this as well
}
I have an image container based on Jquery Mobile listview element structure.
Looks like this:
<li>
<div class="ui-btn-inner">
<div class="ui-btn-text">
<a>
<img src="img/products/l/demo2.jpg">
<h3>product2</h3>
</a>
</div>
</div>
</li>
I'm overriding JQM-CSS to create an image gallery-list. Images and h3 are both contained inside a link element. As the images can have different heights, I want to set a CSS fixed-height/overflow:hidden to the link element to cut off images at the top using vertical align: top.
Here is my CSS so far:
li {
display: inline-block;
min-width: 200px;
max-width: 300px;
width: 24%;
}
li img {
width: 100%;
position: static !important;
max-width: 185px;
max-height: inherit;
}
// fix height and overflow hidden
li a {
height: 100px;
overflow: hidden;
vertical-align: bottom;
}
It doesn't work... If I check on Firebug, the element-height is set to 100px, but it covers the image top versus covering the image bottom and h3, which I do not want to crop away.
I have tried setting line-height to 100px as well, but this does not work at all.
Any hints on what I'm doing wrong?
Thanks!
EDIT:
Can't use clip either, because I don't know at what height I want to start (img.height-100px) and I cannot clip from the bottom. Or can I?
SOLUTION:
It would work like this:
li a {
position:absolute;
bottom: 0;
left: 0;
}
li div.ui-btn-text {
position: relative;
height: 100px;
overflow: hidden;
}
Doesn't use vertical-align but the result is ok.
I'm afraid that can't work. Adding display:block; to your link and would be a start for your method, but check the result: http://jsfiddle.net/uu96D/
vertical-align: bottom; won't push the a tag to the bottom of the container. Here is a guide of how vertical-align works: http://phrogz.net/css/vertical-align/index.html
To solve your problem i'd go to some js solution, and add a negative top margin to the image if its taller than, for example, 80px. Here's a fiddle with the result: http://jsfiddle.net/uu96D/1/
And the code using jQuery:
$('img').each(function(){
var height = $(this).height();
if (height > 80) {
$(this).css({marginTop: "-" + (height-80)});
}
});