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General Discussion

Naming conventions


I was just wondering if there is a best practice in html and css as there is with javaScript of naming conventions when there are two or more words.

So for example I currently do this for the following items

images this_is_a_frog.jpg

page names - this-is-a-frog.php

classes and ID's - .this-is-a-frog

downloads - This_is_a_Frog.pdf

Does anyone have any insight into this please.


2 Answers

James Barnett
James Barnett
39,199 Points

TL;DR Version

lowercase all class, IDs & file names & use dashes as a delimiter

The reason for using lowercase:

  • Lowercase your file names as a general rule, because nearly all production web servers are Linux and Linux is case-sensative for file names
  • HTML is also case-sensative

The reason for using dashes in IDs & class names:

Cool thanks for this James