In our example we're going to do some simple math to calculate widths for an article and aside. Sass has a handful of standard math operators like +, -, *, math.div(), and %. Note that the CSS in %equal-heights isn't generated, because %equal-heights is never extended.ĭoing math in your CSS is very helpful. You can extend most simple CSS selectors in addition to placeholder classes in Sass, but using placeholders is the easiest way to make sure you aren't extending a class that's nested elsewhere in your styles, which can result in unintended selectors in your CSS. This helps you avoid having to write multiple class names on HTML elements. The magic happens in the generated CSS, where each of these classes will get the same CSS properties as %message-shared. That means anywhere that %message-shared shows up. warning to behave just like %message-shared. Sass would watch all files in the app/sass folder for changes, and compile CSS to the public/stylesheets folder.ĬSS Output. In this example: sass -watch app/sass:public/stylesheets You can watch and output to directories by using folder paths as your input and output, and separating them with a colon. If you wanted to watch (instead of manually build) your input.scss file, you'd just add the watch flag to your command, like so: sass -watch input.scss output.css The watch flag tells Sass to watch your source files for changes, and re-compile CSS each time you save your Sass. You can also watch individual files or directories with the -watch flag. For example, running sass input.scss output.css from your terminal would take a single Sass file, input.scss, and compile that file to output.css. You'll need to tell Sass which file to build from, and where to output CSS to. Once Sass is installed, you can compile your Sass to CSS using the sass command. Ive made 4 different styles in tons of different colors To download these free printable binder covers or folder covers, just click on the link. They are stylish, and best of all will help your kids keep their school papers organized. The most direct way to make this happen is in your terminal. To get the kids started off right, Ive designed these free printable binder covers or folder covers. Once you start tinkering with Sass, it will take your preprocessed Sass file and save it as a normal CSS file that you can use in your website. Sass has features that don't exist in CSS yet like nesting, mixins, inheritance, and other nifty goodies that help you write robust, maintainable CSS. PreprocessingĬSS on its own can be fun, but stylesheets are getting larger, more complex, and harder to maintain. Go here if you want to learn how to get everything set up. If you want to just browse here, go ahead, but we recommend you go install Sass first. Before you can use Sass, you need to set it up on your project.
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