This card shows you how to center a float horizontally in CSS. Also: find out what techniques are available for...
If you manipulate the DOM with JavaScript and your page contains nested elements with position: relative, chances are Internet Explorer...
Since May 2011 we are cutting new gems using Bundler, which is less painful than cutting gems using Jeweler. You...
This is an awful way to test whether a number is shown on the screen: Then I should see "5...
Capybara allows you to select DOM elements, e.g. by using field, find_field(...) or field_labeled(...): role_select = field_labeled...
These steps are now part of Spreewald. Here are some useful examples how to use the attached Cucumber Timecop steps...
Today I needed to execute a ruby gem executable with sudo. But, surprisingly, bash would tell me command not found...
When you simply want to get to know Puppet, follow puppetlabs’ Learning Puppet Docs. They give you a handy introduction...
Although regular expression syntax is 99% interchangeable between languages, keep this in mind: By default, the dot character (".") does not...
We recently decided to put static content for HouseTrip.com to Amazon Cloudfront for a faster user experience. This happens fully...
You know that you can collect an array as groups using in_groups or in_groups_of. Maybe you want...
Install Ubuntu Server Download an image from this site Select File > New… to and follow the instructions, choose the .iso...
Run rspec-and-cucumber from any project directory to run both RSpec and Cucumber. If available, rspec_spinner or cucumber...
When you want to quickly boot from a drive or image in a virtual machine you do not need to...
If you want to play music or sounds from a browser, your choice is to use either Flash or the...
Validations that need to access an associated object may lead to some trouble. Let's exemplify that using this example...
We often have a separate production branch that lags a bit behind the more cutting edge main branch. Sometimes you...
An alert alternative for jQuery that looks good. Apprise is a very simple, fast, attractive, and unobtrusive way to communicate...
Ruby comes with a class BigDecimal which you can use for arbitrary precision arithmetic. You should use BigDecimal instead of...
When storing floating-point numbers such as prices or totals in an SQL database, always use a DECIMAL column. Never...
When deploying an application with "cap deploy" by default [1] you only deploy your code but do not run migrations...
If you save a non-standard object (not a String or Fixnum, etc) like the AwesomeClass from your application in...
If you want to have a new log file every day automatically, but avoid using logrotate, the CustomLog directive is...
You most likely have a form element inside another form element. Don't do that. Ever. Firefox and Chrome will...