What?
So this is a quick article to demo how to center an iframe horizontally and vertically in a screen/viewport in pure CSS (no JavaScript allowed). This CSS centers it by its center point rather than the top/bottom/left/right outline.

Why?
On a mobile, a client's site uses an external page embedded by iframe. When the app within the iframe has an alert message, it popups a div at the centre of its app. The alert message is always at the center of the iframe but if the iframe has a height of 2000 pixels, the iframe gets aligned to the top of the parent...

How?
We're going to use a touch of CSS and instead of determining heights and alignment with JS.

What?
This is an article I hope to refine one day where given a set of breadcrumb hyperlinks, when I hover the mouse over the links, the text changes and the transition between the two is controlled smoothly.

Why?
At time of print, I couldn't find any clear example demonstrating this so here's my take on it:

What I have

» Home / Products / Lanterns

What I want (on mouseover)

// if I hover the mouse over the "Home" link:
» Return to Home / Products / Lanterns        

// if I hover the mouse over the "Products" link:
» Home / More Products / Lanterns        

// if I hover the mouse over the "Lanterns" link:
» Home / Products / More Lanterns        

How?

What?
I saw a lot of articles that would cover this but I wanted an example which includes headers and footers and how to get an automatic page-break-inside to not overlap these. Fine on screen but this is obviously for when it comes to printing.

Why?
I needed to create a template in HTML where the first page is a cover page (background image filling the page with a logo floating at the centre) and the next page has a table which is of variable length. Fine when the table was short and didn't have many rows. But the client will pick up the phone to you when the table has too many rows to fit on one page, and this overlaps onto the next, covering the footer and header...

How?
By spending a lot of time spinning on my chair and twiddling my thumbs...

Applies to:

• CSS
• HTML

What?
A quick article on how to get a div layer to increase height based on how a heading fits on a page.

What?
I have a heading like this:

The code of this is:

<div id="page-title" class="col-xs-12">
	<h1><a href="/">A long heading that wraps over several lines</a></h1>
</div>

What?
So many people asking this when the solution is a bit of aesthetic styling.

ol{margin:4px}

-- yields
995.
996.
997.
998.
999.
000.      <-- What's going on here then?
001.
002.

Or check out this screenshot of the issue:


How?

What?
So this is an article to note an oddity when I was working with a Yootheme template called "yoo_sync". Some clever scripts (both mootools and jquery) using the equalize method to make div layers the same height, and in this case, the same width. It isn't so much a miscalculation of 100% divided by 3 that leaves 1 pixel left over, more the fact that the scripts use that 1 pixel (ceiling rather than floor?).

Why?
We have a row on a website of three boxes made of div layers. When viewed normally on a 15" Laptop, all was good using Chrome and tolerable using MS Internet Explorer. If we maximized the Google Chrome browser, the row would split and there would be 2 boxes on the top row and the third would pop under these. As for MSIE, that was ok when maximized.

How?
You could do loads of code hacks which is what I tested but all for nothing because you always end up needing to specify a third of the width.

What?
This is a quick article on how to resolve the following issue:

• Overall body background color is blue.
• Background color of my contents is white.
• When I visit a small page on the site, the contents background (white) shows.
• When I visit a very long page on the site, the contents background disappears and reveals the overall background (blue) making the text very hard to read.

Why?
Took me a while to figure out what was the problem, I'd visit some pages and they'd be fine, but when visiting a long page, it would initially display properly but then the white background would disappear when the page finally loaded.

How?

What?
So I have an unordered list of values (*, 1, 2, 3...) and for styling reasons I want the asterisk to be the same size as the numbers but not overlap any list item beneath it. By increasing the size of the asterisk, this often increases the line-height and causes the overall line height to change for other objects in the same row. The problem afterwards was that the asterisk character would overlap the item beneath it (in this case #2) so when a user clicked on #2 they would in fact be clicking on the item containing the asterisk above it.

Objective

Box List Before:	Box List After
* 1 2 3	* 1 2 3

How?