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Foxy - CSS Framework

09.10.2011
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One of the coolest new stuff in CSS3 is the calc function. Calc() is a dream come true for the people who like to mix various units like(px, em, %) with the goal to have more flexible layout system.

With calc you can have something like width: calc(280px - 2em + 2%*1px ….)

When I first heard about calc() my first thought was I can finally implement margins on my CSS Framework Malo.

If you have some .class { width:25% } that will make 4 columns grid (25% + 25% +25% + 25%). The problem is that you can't have precision px margins (gutter). So in the past you had nested divs or .something-like-this{width:24%; margin-left:1%}

With calc() that problem is solved now we can have .class{width:calc(25%-10px); margin-left:10px} . And with that we can have the flexibility of the % and the px precision.

Unfortunately calc is only implemented on Firefox 4 or later. Some documentation indicate that works even on IE9 but my test show differently.

To show the power of CSS3 calc I decided to build one simple CSS Framework. Clearly this framework has no piratical value today because only work on Firefox 4 or later. I build it to show how cool calc() is and to indicate how calc() can be used in the future.

The logic behind this framework:

It is one to twelve column framework.
The margin(gutter) is 10px you can change it if you like.
You can put px, em, % in the default container(like 960px or 73% or 50em)

Let's take one part of the Framework:

.d5{ width:calc(100%/5 - 10px); margin-left:10px} Meaning we have 100%/5 = 20% column with 10px margin or you can build 5 columns inside 100%.


.dx5{calc(100% - 100%/5 - 10px); margin-left:10px} is the second part of the d5 meaning you have 100% - 20% = 80% with 10px margin.

Very simple rule to remember .d5 + .dx5 = 100% or .d7 + dx7 = 100%

Here is example of some grid combination (Firefox only).

Demo1

Demo2

And some cats.


Download this project on GitHub
References
Published at DZone with permission of Vladimir Carrer, author and DZone MVB. (source)

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