CSS overflow issue - html

I use overflow: hidden on my site to get control over ending floats.
Which up to now always have worked perfectly.
I know there are several different approaches of ending floats but the overflow trick normally works best.
However this time I cannot get it right.
If you look at the following page and try to adjust the volume you'll see that the volume control goes under my header.
http://pieterhordijk.com/sandbox/html5-audio-api/mp3-format
The problem is in the #content-container div
When I remove the overflow the volume control goes over my header (which is what I want).
But I can't just drop the overflow or I have to result to another solution to control the floats, which is not something I want to do unless REALLY necessary.
Anybody has a solution to this problem?

You've already selected an answer, but there are some issues that should be pointed out. First, clearing a <br> is not semantic, it adds extra code and can cause issues in some browsers.
Next, you should not use the overflow method of clearing floats now that CSS3 is becoming more prevalent. It causes issues with any new parameters that display effects outside the boundaries of the container. At a minimum both box and text shadows will be cut off if you are using the overflow method.
You really should use the clearfix method. It's simple to implement, does not require any additional mark up, and does not cause issues with any CSS3 properties.
Good reading -
http://perishablepress.com/press/2009/12/06/new-clearfix-hack/
http://fordinteractive.com/2009/12/goodbye-overflow-clearing-hack/

You could give the snippets div clear:both. You have the element in there anyway, and I assume you wouldn't want it to wrap around the nav, so it's not just adding unsemantic elements/classes for the heck of it.

Related

Unwanted space in 2 column layout

I'm trying to design a 2 column layout for getting a feel for HTML again.
I want to avoid using floats because I want to keep the natural document flow. Every other question on Stack Overflow I browsed through incorporate floats or worse tables. I tried layouting it with flex as well but I couldn't figure out how to make both the columns stay the same size on the other pages with different amounts of content in the first column.
Here's what I got so far: http://jsfiddle.net/wykenakw/
I figured out through trial and error that I can use a negative margin to line up the sidebar to the main content but it feels awkward, quirky and hacky. I inspected every element inside my columns but I couldn't find any potential child elements with margins that could cause this 4px gap. It's driving me nuts.
Am I missing something? Am I doing something wrong?
float is ideal because it will essentially cut out the "white space" for you. You can try and use: white-space-collapse:discard on parent elements (in this case #wrapper), but I rarely have success using it.
White space is just a "natural" occurrence created by the browser rendering. In order to avoid this (without using float), you need to simply remove the white space between your elements. This isn't ideal because of the flow and indentation of the elements, but without using float it's what has to be done.
Additionally, in my opinion there is nothing wrong with using float as a "natural document flow". You can always clear the elements.
So instead of:
</main>
<aside id="col_2">
You'd have:
</main><aside id="col_2">
Hope this helps!
http://jsfiddle.net/wykenakw/1/
Change your <main> into a <div> or use css to turn it into a block element:
main {
display: block;
}
As mentioned in the other answer actual spaces between the two elements is causing the unwanted whitespace. However spaces between two block elements is always ignored.

CSS Equal Height Columns - Ugh! Again?

Right, worst question in the history of web design. Who cares, just choose an option. So my question is like this...
What is the best answer to be standards compliant and (backwards) browser compatible?
jQuery used for layout which is supposed to be reserved for css and html
OR
Negative margin, extra containers , or other hacks or bloat?
Already spent too much time on this but looking for the "professional" way to do it.
EDIT: Here is a code example using Alexander's method.
Usually I use pure css/html solution which works in 99% cases:
I have a parent div with background-repeat on 'Y' axe. The general structure is going to be like this :
html:
<div id="container" class="clearfix">
<div class="LeftPane"></div>
<div class="CenterPane"></div>
<div class="RightPane"></div>
</div>
css:
#container{
background:url(imagePath) 0% repeat y;
}
for background image you can apply image for the borders, or everything else what can make users to think that all 3 blocks have the same height
There are many ways of successfully doing that, I think the easiest one of them is to simply wrap them all in a common parent container, set his display to table or table-row No need for parent at all. and set the original <div>s to display: table-cell;
jsFiddle.
For compatibility I'd suggest jQuery. Hacks and extra containers make your code bloated, as you've said, and will end up making it more difficult to edit if changes need to be made. And anyways, HTML is the layout of the page.
I have come up with a revolutionary new method for equal height columns. It is a pure CSS/HTML solution, tested in the latest Chrome and Firefox, and IE7-9. It is a bit tricky to set up but once it is done it works beautifully. The problem with every previous solution I have seen is that it doesn't actually create individual, side-by-side divs that can have their own borders, margins, etc. Other solutions always have some columns overlapping which means you can only contrast the different columns by changing the background. This method allows any column to be any height unlike some methods. The secret to its success is using float: right instead of left. If it was floated left you would have issues with extra space on the right causing scroll bars. Perhaps the only down side with this method is that it can be hard to wrap your head around!
Check it out here.
http://jsfiddle.net/wRCm6/2/

css problem with navigation

I use example 3 given in this page:
http://simple-navigation-demo.andischacke.com/
and I have a problem because when I open the main page (for example)
http://simple-navigation-demo.andischacke.com/
I get an empty div on the left instead of the content div filling the whole area.
On the other hand when I open a page from the menu (for example)
http://simple-navigation-demo.andischacke.com/books
Everything is just fine.
Can someone propose a solution? How can I completely remove the div in CSS if it does not contain anything?
There are lots of solutions; it depends on where you want your logic to be. A pure CSS solution might be tricky; it might be easier to do this sort of thing in JS.
That said, try changing #sub_navigation's width property to be a max-width instead. This way, it can still be set to float:left, but when there's no ul element inside it, it can collapse.
You might need to modify the width of your content div after that, but hopefully this gets you on the right track.

Footer Issues : Can't Keep it Down

I have been trying for 2 hours to get my footer to stay at the bottom.
I have been trying "Matthew James Taylors" technique, but no luck.
Anyone see what I am missing or doing wrong?
Here is a Live Example : http://glustik.com/essex/index.html
Any help would be GREAT!
I would attached the CSS Code with the { } but it always breaks for me.
I feel like the CSS to fix this will still be problematic, I would be tempted to rewrite the whole thing: HTML markup and CSS, otherwise I suspect there will be more trouble down the road.
Here are some things that are most likely giving you trouble:
Duplicate id values (as mentioned)
Unnecessary absolute positioning
Hard-coded height values on several divs
Unnecessary use of "clearfix" divs
Overuse of negative margins to compensate for padding on other elements (always problematic)
Minor but relevant: use of classes like floatRight, just as bad as using inline styles.
I think in general, instead of trying to control the positioning and height of everything - just let the normal content flow dictate it. Naturally, the last element in your markup (footer) should be on the bottom without all these over-thought restrictions.
Best of luck!
EDIT: Apparently I've come off as unhelpful, so I felt I should add a direct response: For a quick fix, to simply get the footer on the bottom:
Remove the height and bottom padding from #mainBody
(tested in FF4 and IE8). There will still be some padding issues within the footer, but that can be resolved in a number of ways depending on how you'd like to approach it. Once again, good luck with your project.
You have the footer positioned absolutely in #container, which is positioned relatively. therefore, its being positioned at the bottom of #container.
try moving it out of #container, or remove the relative positioning from #container
Because all of the content inside your main container (#mainBody) is floated, the container's only way to determine it's height is via the "height" property, which is set to 100px;. The footer is correctly rendering right below the 100 pixel height of the main container.
You have three options:
you can either properly clear your main container so that its height is dynamic based on its content using a clearfix like this
or you can set the height of the main container to something larger. I changed it to 700px and the footer rendered well below the main body.
or you can remove the height altogether, which will probably be the best solution in the long-run. Thanks to #Gaby aka G. Petrioli for pointing this out.
I've been doing this a long time and have never heard of this method. That doesn't make it bad, but the currently accepted version in my circles comes from Ryan Fait (http://ryanfait.com/resources/footer-stick-to-bottom-of-page/)
If you load this up in Chrome and disable the position:relative from the container it does properly glue the footer to the bottom of the page. That signals a problem to me, because it's contrary to what the tutorial says. Regardless, it accomplishes your goal.
You should take at least a look at Compass. It makes CSS so much easier. For your particular question, take a look at:
http://compass-style.org/reference/compass/layout/sticky_footer/
Make the following changes and it rendered fine in Chrome for me:
remove bottom:0; from #footer
change padding-bottom:167px; in #mainBody to the desired location (I used 455px and it looked pretty good)

Is there any easy way to determine what factors are contributing to the size of an HTML element?

For example I have a situation where I have something like this (contrived) example:
<div id="outer" style="margin: auto>
<div id="inner1" style="float: left">content</div>
<div id="inner2" style="float: left">content</div>
<div id="inner3" style="float: left">content</div>
<br style="clear: both"/>
</div>
where there are no widths set on any elements, and what I want is #inner1, #inner2 and #inner3 to appear next to each other horizontally inside #outer but what is happening is that #inner1 and #inner2 are appearing next to each other and then #inner3 is wrapping on to the next line.
In the actual page where this is happening there is a lot more going on, but I have inspected all of the elements very carefully with Firebug and do not understand why the #inner3 element is not appearing on the same line as #inner1 and #inner2 and causing #outer to get wider.
So, my question is: Is there any way to determine why the browser is sizing #outer the way it is, or why it is choosing to wrap #inner3 even though there is plenty of room to put it on the previous "line"? Baring specific solutions to this problem, what tips or techniques do you hardcore HTML/CSS/Web UI guys have for a poor back end developer who has found himself working on the front end?
It would be nice to have a tool that could tell you exactly what all your layout problems are, but in this case the browser rendered the page exactly how it should have -- the combined width of the floats exceeded the width of the containing block, so the last one drops to a new line (this is slightly different than the IE6 expanding box/float drop problem which is typically caused by content inside the float, not the floats themselves). So in this case, there was nothing wrong with your page.
Debugging this is simply a matter of walking through your HTML in Firebug and figuring out which children of a block is exceeding the block's width. Firebug provides plenty of information for this purpose, although sometimes I need to use a calculator. I think what you described about being able to see which elements constrain other elements would simply be too complex and overwhelming, especially for elements that are removed from normal flow (such as floats or positioned elements).
Also, a deeper understanding of how CSS layout helps a lot as well. It can get pretty complicated.
For example, it is generally recommended to assign explicit widths to floated elements -- the W3C CSS2 spec states that floats need to have an explicit width, and does not provide instructions of what to do without it. I think most modern browsers use the "shrink to fit" method, and will constrain themselves to the width of the content. However, this is not guaranteed in older browsers, and in something like a 3-column layout, you'll be at the mercy of at the width of content inside the floats.
Also, if you're striving for IE6 compatibility, there are a number of float related bugs that could also cause similar problems.
Try the Web Developer Plugin for Firefox. Specifically, the Information -> Display Block Size and Outline -> Outline Block Level Elements options. This will allow to see the borders of your elements, and their size as Firefox sees them.
In Firebug's CSS tab, you can see what style rules apply to a selected elements in the cascading order. This may or may not help you in your problem.
My guess would be that something about the content of #inner3 is causing it to wrap below the first line, and the #outer is just getting sized to accommodate the smaller needed space.
So I found the answer in my specific case -- there was a div much further up in the DOM that had specific left/right margins set which compressed it and everything in it.
But the heart of the question is really how can you easily debug this sort of issue? What would be perfect in this case for example would be something in Firebug that, when hovering over an element's size in the layout panel would display a tool tip that says something like "width constrained by outer element X; height constrained by style Z on element Q" or "width contributed to by inner elements A, B and C".
I wish I had the time to write something like this, although I suspect it would be difficult (if not impossible) to get that information out of Firefox's rendering engine.