HTML Style Guide

Having consistent, clean, and tidy HTML code makes it easier for others to read and understand.

Always Declare Document Type

Begin your document by declaring the document type as the first line.

For HTML, ensure you use the correct document type declaration.

Use Lowercase Element Names

While HTML permits mixing uppercase and lowercase letters in element names, it’s advisable to opt for lowercase names. Here’s why:

• Mixing uppercase and lowercase names can appear inconsistent.
• Developers typically prefer using lowercase names for consistency.
• Lowercase names offer a cleaner aesthetic.
• Writing in lowercase is generally easier and more intuitive.

Good:

Bad: