I have a div which has a fixed position. The problem is when the div moves to the right it does not go beyond the screen's right edge. It resizes itself making its width smaller. This does not happen when I give it a fixed width. But I want it to have a fluid width with max-width defined. I do not want it to stick to the right edge by defining right. I want to define the left position and let the excess go out of the screen.
You can see the problem here: http://codepen.io/anon/pen/BjZppJ
Click on the div in the example to see the problem.
HTML CODE
<div> -- RANDOM TEXT HERE -- </div>
CSS CODE
div
{
position: fixed;
left: 0;
top: 0;
padding: 20px;
max-width: 500px;
background: rgba(112,66,102, .1);
}
div.right
{
left: calc(100% - 300px)
}
Add width: 100%; to the div, by doing so it will always try to be 100% the width of it's parent, but since you set the max width, it will not quite get there.
$('div').click(function(){
if($(this).hasClass('right'))
{
$(this).removeClass('right')
}
else
{
$(this).addClass('right')
}
})
div
{
position: fixed;
left: 0;
top: 0;
padding: 20px;
max-width: 500px;
background: rgba(112,66,102, .1);
width: 100%;
}
div.right
{
left: calc(100% - 300px)
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div>as dfas dfa sdf asdfasd fsdf sdfasdfa sdfasdfasd fasdfa sdfa sdfasdfa sdfasdfa sdfsdf sd</div>
adding width:100% to the style definitions of the div will do the trick.
Default is width:auto and for elements with fixed positions it will try to calculate a width which does not overflow the window dimensions.
Related
I have issues with understanding the div position (relative, absolute, fixed) properties. I basically have an absolute div centered. Inside the div it should be possible to scroll vertically and horizontally. Inside this div should be a fixed header with a width larger than to screen (overflow) and a content div which has an overflow vertically and horizontally as well.
html,
body {
height: 100%;
width: 100%;
background: #fff;
margin: 0px auto;
padding: 0px auto;
position: fixed;
}
.container {
width: calc(100% - 20px);
height: calc(100% - 20px);
top: 10px;
left: 10px;
background: #2924aa;
overflow: scroll;
display: flex;
position: absolute;
z-index: 20;
}
.container-header {
width: calc(100%);
height: calc(10%);
background: #2924aa;
overflow: visible;
z-index: 10;
position: fixed;
background: red;
}
.container-body {
width: calc(110%);
height: calc(110%);
background: #2924aa;
overflow: auto;
position: absolute;
background: green;
}
<div class="container">
<div class="container-header"></div>
<div class="container-body"></div>
</div>
Here is my plunker:
https://plnkr.co/edit/wCWvHPcuYmVMql5HulHy
So i think the main question you have is in regards to the Position Attribute in CSS3. Below is a brief summary of each possible value.
CSS Positioning
The CSS positioning attribute of position has four different values.
Static - Static is the default value for position. It keeps the element on the page in its place, and it scrolls up the page as you scroll.
Relative - Relative positioning is pretty much as the same as static; however, you can use the left, right, top, and bottom attributes to alter the placement of the element relative to its original position.
Fixed - A fixed element's position is in relation to the viewport (i.e. the browser) therefore, an element with a fixed position does not scroll with the page, because when you scroll the viewport does not change. However, if you resize the browser, the element will change position.
Absolute - A element with an absolute position, is positioned relative to its parent element (i.e. the element that contains it).
A good resource for more information, including some diagrams can be found here.
I have a square image that I want to have centered on the screen. Problem is that I want the image to stay a square, while being not more than 80% of both the width and the height. I have used the following code, which makes my image 80% of the height (when height < width), and centers the image vertically, but not horizontally of course. When using a fixed width, I could have used margin-left: 50%; margin-right: 50%, but with relative size, this would set the left side of the image at 50%. Any ideas?
.my_img{
max-width: 80%;
max-height: 80%;
margin-left: 10%;
margin-top: 10%;
}
Try this:
.my_img_container {
position: relative;
}
.my_img {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%,-50%)
}
Here is a fiddle:
http://jsfiddle.net/l0wskilled/voubtxrt/
if your image has display: block then you can probably use margin: auto auto and remove the % margins. If its display is inline or inline-block, you can use text-align: center on the parent element of the image to make it horizontally centered. I have not tested this code. If this doesn't work, and you have no problem with jQuery, this can be done with few lines of jQuery.
You could also try:
<div class="container">
<img src="https://www.webkit.org/blog-files/acid3-100.png" class="my_img" />
</div>
With the style:
.my_img {
max-width: 80%;
max-height: 80%;
margin-left: auto;
margin-right: auto;
display: block;
}
I think this is what you are wanting anyway, maybe i'm wrong!
https://jsfiddle.net/dLozvcmo/2/
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;
}
I have one element below another and I am using position relative to drag the bottom element up just a bit so that it overlays the top element.
The paperOverlay element is the last element on the page, vertically speaking, and I want it to extend to the bottom of the browser window. However, the relative nudging of the element's position leaves an equal amount of whitespace at the bottom. Is there any way to avoid this?
The HTML looks like:
div class="container">
<div class="homePage">
<!-- some content -->
</div>
<div class="paperOverlay" style="position: relative; top: -70px;">
<!-- some more content -->
</div>
</div>
And the CSS looks like:
div.container
{
width: 960px;
margin: 0 auto;
}
div.homePage
{
width: 800px;
height: 500px;
}
div.paperOverlay
{
width: 960px;
min-height: 400px;
background: url('Images/Overlay.png') no-repeat top center;
}
Basically, the bottom layer is a white background with a torn paper edge effect at the top. The goal is to have the torn paper edge slightly overlay the bottom of the element above it. I did try margin-top: -70px as suggested below and it fixed the height, but now the elements in the top element lay on top of the overlay, and I want the overlay to be on top.
Could you try a negative margin rather than relative positioning? Also, could you explain a little bit more why you need to do this and post you css so that we can better suggest a solution?
Try setting the height of the paperOverlay element. It should be the actual height minus the amount moved relatively.
I did try margin-top: -70px as suggested below and it fixed the height, but now the elements in the top element lay on top of the overlay, and I want the overlay to be on top.
Try this:
div.container
{
margin: 0 auto;
width: 960px;
}
div.homePage
{
height: 500px;
position: relative;
width: 800px;
z-index: 1;
}
div.paperOverlay
{
background: url('Images/Overlay.png') no-repeat top center;
min-height: 400px;
position: relative;
top: -70px;
/* you can optionally use bottom: 70px; rather than top: -70px */
width: 960px;
z-index: 2;
}
Using position: relative; on both elements and setting the z-index should get the overlay on top of the top element, rather than the other way around.
You may also want to try using display: block; on all elements where you need fixed width/height (especially divs and other containers that need a fixed width/height, like anchors or list items), to prevent collapsing. It will usually resize non-block-level elements to fit their contents and ignore width and height rules otherwise.
Using the "vh" unit worked for me. I could not get it to work with height: calc(100%-50px)
#main-nav{
width: 55px;
background-color: white;
transition: 400ms;
height: calc(100vh - 50px);
}