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.CSS File Extension

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File TypeCascading Style Sheet

DeveloperN/A
Popularity
4.5 (29 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryWeb Files
FormatText

Text

This file is saved in a plain text format. You can open and view the contents of this file using a text editor.

What is a CSS file?

A CSS file is a cascading style sheet (CSS) file used to format the contents of a Web page. It contains customized, global properties for how to display HTML elements. CSS files can define the size, color, font, line spacing, indentation, borders, and location of HTML elements.

More Information

CSS files are used to create a similar look and feel across websites. They also are used to reduce the amount of work and HTML code generated by consolidating display properties into a single file.

CSS files are stored in a plain text format.

Programs that open CSS files
Windows
File Viewer Plus
Adobe Dreamweaver CC 2015
Adobe ColdFusion Builder 3
Microsoft Visual Studio 2015
Blumentals WeBuilder
PSPad
Notepad++
Other text editor
Any Web browser
Mac
Adobe Dreamweaver CC 2015
Adobe ColdFusion Builder 3
Apple TextEdit
Other text editor
Any Web browser
iOS
Alexander Blach Textastic Code Editor
Updated 8/18/2016

FileInfo - The File Extensions Database

This page contains information about the .CSS extension and its known file associations. Our goal is to help you understand what a CSS file is and how to open it.

The Cascading Style Sheet file type, file format description, and programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and therefore do not publish any information we have not verified.

If you would like to suggest any additions or updates to this page, please let us know!