About Programming: Python Dev, Writing Web Games, Z-Index in CSS

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Programming From Scott Orgera, your About Programming Editor This week's issue focuses on the world of open source development, including a guide to getting started with Python and details of the upcoming PyCon 2014 in Montreal... Z-Index in CSS "One of the challenges when using CSS positioning for web page layout is that some of your elements may overlap others. This works fine if you want the last element in the HTML to be on top, but what if you don't? In order to change the way elements overlap you need the z-index property of CSS." Search Related Topics:  z-index style property  css positioning  layers PHP: Rounding and Formatting Numbers "There are times when you always want to round up. For example, if you are buying something that comes in packs of 20, and figuring out how many packs you need to buy, you have to round up because you can't buy a half a package. You can do this in PHP using the ceil () function." Search Related Topics:  rounding numbers  php basic functions  php math Beginning Open Source Development with Python "Open source development plays a role in everything from mobile apps and social networks, to music recording and movie special effects. If you've ever wondered how to work on projects like these, you're in luck--you can get started in just three easy steps with Python." Search Related Topics:  open source development  python  integrated development environments Java: Declaring Variables "A variable is a container that holds values that are used in a Java program. To be able to use a variable it needs to be declared. Declaring variables is normally the first thing that happens in any program." Search Related Topics:  variables  data types  java syntax Related Searches Python Programming Python Training Python IDE Python for Windows Python Open Source Featured Articles Can Open Source Be Cool? Poll: Are You Considering Writing Web Games? Can You Afford to Miss PyCon 2014? Going Back to School with Open Source What is an Analytics Database? Tweaks and Hacks to Bend Windows 8 to Your Will   More from About.com Run Your First 5K Even couch potatoes can be ready for a 5K with just a couple months of training. Read more...> Help! I'm Too Busy Time and stress management tips to help you feel as though you have more time. Read more...>   Sign up for more free newsletters on your favorite topics You are receiving this newsletter because you subscribed to the About.com Programming newsletter. If you wish to change your email address or unsubscribe, please click here. About.com respects your privacy: Our Privacy Policy Contact Information: 1500 Broadway, 6th Floor New York, NY, 10036 © 2013 About.com   Advertisement