case-sensitive-tag-name 🔧

Detect uppercase tag names.

Severity

warning

❌ Incorrect

<H1>Title</H1>
<DIV>text</DIV>

✅ Correct

<h1>Title</h1>
<div>text</div>

Reference

• HTML Standard - Tag name

Configuration

{
  "rules": {
    "case-sensitive-tag-name": "error"
  }
}