Valid HTML Tag Pattern

Which HTML tags are considered invalid:

• Tags ending with a different tag than what it started. Example: <p>Hello</a>
• Tags with open attributes (or closed with a different type of quote). Examples: <p style="color:red>Hello</p> or <p style="color:red'>Hello</p>

Which HTML tags are considered valid:

• Tags ending with the same tag
• Tags with closed attributes

Notes

• This pattern does not support html tags inside of others, as it may match the whole parent element's tag.
• This pattern does match unexistent html tags, which is not worth removing because it would make the pattern too long and also because custom html tags exist.
• This pattern does support tags that look like this: <img src="https://example.com"/>