How to change a sticky element's height dynamically? - html

I have two divs, one is a sticky element and the other is a footer at the bottom. The site has enough height so that it's scrollable and the footer is not visible intially. What I need to achieve is, when I scroll down and the sticky element meets the footer, the height of the sticky element should be dynamically reduced in such a way that it still touches the footer but doesn't cover it up. When the sticky element's height gets too small and the content overflows, a scrollbar should appear. Is it possible to achieve this with pure CSS?
This is my current code:
https://jsfiddle.net/co7dty0p/

Related

Stick Element to Bottom of Fixed Element

I've got a fixed header element that I would like to stay fixed on scroll. The scrollable area, however, I would like it to be positioned directed after the fixed element, but I don't want to use position: absolute and remove it from the document flow.
I've created a Codepen here to illustrate the problem I'm having. I would like the red element (.top) to stick on scroll, without hiding the first list item.
Is there a way to go about doing this in CSS (possibly using flexbox) that doesn't require any JS?
Any help is appreciated.
Thanks in advance!
If my understanding of your question is correct, you want to make no changes except for the scrollable content to not be hidden behind the fixed header.
The fixed header seems to have a natural height of nearly 20px.
So you can apply a top margin to the scrollable content which pushes it down from the top, until it clears the header.
Try adding this to your CSS:
div.list { margin-top: 20px;}
This will push the div containing all the list items 20px from the top.
DEMO: http://codepen.io/anon/pen/EVWYJd
UPDATE
The answer above works when the height of the fixed header is known. But based on feedback in the comments, the height of the header varies. So a solution is needed that keeps the scrollable content beneath the header regardless of the height of the header.
This issue has been addressed in these posts:
How do I use CSS to position a fixed variable height header and a scrollable content box?
Creating a variable height "fixed" header in CSS with scrollable content

CSS - Sticky footer + Sidebar Problems

I am having some trouble with the layout of a website that has a header, content, "sticky" footer, and a sidebar. The sticky footer, header and content combination is not a problem by itself, but I can't for the life of me figure out how to add a sidebar that goes from the header right down to the footer without messing up the "stickyness" of the footer.
The way I am approaching it now involves absolute positioning. I basically make a header div (height: 71px; top: 0px;), a footer div (bottom: 0px; height: 30px;), and a content div (top:71px;bottom:30px;). I then float the sidebar left inside the content div and make its height 100%, and add another div (call it "view") next to it for the actual site content. This makes sure the sidebar is nicely from the top to the bottom, and the footer is normally at the bottom of the page.
However, problems arise with this approach when the window is resized, especially so when the content is too large to fit in the "view" div itself. This results in the footer cutting off the content, and scrolling down makes the footer move up in the window. I would like to achieve a footer that behaves like this, but also have a sidebar that ALWAYS stretches from the header to the footer of the page.
If anyone could think of a way to add a such a sidebar to the page linked above or has any ideas on how I could go about tackling this problem, it would be greatly appreciated. Thanks beforehand.
Do you think you could post some example HTML and CSS you have besides just the div height and positioning?
What I was thinking is you could throw another <div> inside the sidebar <div> and set the margin-bottom or padding-bottom to 30px. I'll work on a jsFiddle for you.
You can always put an overflow: auto on your view div.
http://jsfiddle.net/dzRZd/
Edit:
With fixed positioning instead:
http://jsfiddle.net/ekSvQ/2/

Html layout with header and left menu of 100% height

I'm struggling to create a very simple layout of header and 2 column content - left navigation and right content (http://jsfiddle.net/WsQbs/4/).
What I cannot achieve is having menu and content take 100% height of the page (not just window), while having a vertical line (border) between menu and content. The problem is that when positioning content absolutely and any of the 2 columns have enough content, so that scrollbars appear, the background and border of corresponding divs still only take 100% of the window, not full height of the content.
the absolute position prevent it from you want. is this what you want? http://jsfiddle.net/bingjie2680/WsQbs/6/
update: http://jsfiddle.net/bingjie2680/WsQbs/8/

css clearing an absolutely positioned div

I have a page with divs 250px x 250px which are all positioned absolutely, when one of these divs are opened an ajax call is made which expands the div to show all its contents, these divs are restricted to 600px in width but can be any height depending on info being presented so when a div has alot of content it seems to stretch over my footer which is understandable due to the fact that the widgets hovering on the page.
My question though is can I somehow set my footer to clear this large widget as it seems to be stretching over it?
There is no way of clearing an absolutely positioned div, absolutely positioned divs are taken completely out of the document flow. You can have a look at using a sticky footer which should keep your footer at the very bottom of the page which should visually fix up your page as the footer will no longer abruptly end.
However unless you restructure your HTML or use some javascript to check the height of the div, you wont be able to have the footer appear nicely underneath the div using pure CSS.

Resizable div tag in html as per window resize

My code is as below:
<div id="frame1" style="overflow-y: auto;overflow-x: auto;width:87.5%;height:100%;" >
content
</div>
Here declared div working as a scrollable div but it doesn't resize as per window resize.
I have a situation where I need, on the same line, When the window is resized and the div's
eventually touch, I need them NOT to wrap, but instead, enable the horizontal and vertical scrolling.
Please Help...
<div id="frame1" style="display:block; width: 87.5%">
content
</div>
Height will increase based on content
Not quite sure what you are trying to do here. I'm guessing you have 2 div's next to each other and you want one of them to start scrolling when the space is too small for them both. If you know the width of the other div you could just do something like right: *div width* which would make the 'frame 1' div fill the rest of the space when the width was set to 100%. Then if the content of this div were too large for that div, scroll bars should appear. You would obviously need to set the position value to something other than static to get the top, right, bottom or left css values to have an affect.
I recently used something similar to this on a site with 3 fixed div's; a header, a footer and the main content. For the content, I have top set to the height of the header and bottom set to the height of the footer with a height value set at 100%. This makes the content fill the space between the header and footer. I then set the overflow-y value of the content to scroll so the vertical scroll bar is always visible but it is only on the content as the header and footer don't scroll anyway which gives a really nice effect, especially with webkit scroll bars.
Again, I'm not really sure if that was what you were asking. Temporary link to site here (resolution-gaming.comuf.com).