Kilotest: Diagnoses of attribute obsolete violation by HTML element 17 on Northwest Natural Gas page

Basics

About the Northwest Natural Gas page

• URL: https://www.nwnatural.com/
• Tested 7 days ago by job wta on 2026-05-26 at 03:09

About HTML element 17

• Tag name: IFRAME
• Text: [not applicable]
• Start tag: <iframe allowtransparency="true" scrolling="no" src="https://fast.wistia.com/embed/iframe_shim?domain=net" style="height: 1px; left: -200px; position: absolute; top: -200px; width: 1px; direction: ltr;">
• XPath: /html/head[1]/iframe[1]
• Bounding box: x = 0, y = 0, width = 0, height = 0

About the attribute obsolete issue

• Why it matters: Document includes obsolete code that the browser may fail to process
• Priority: high
• Related WCAG standard: 4.1

Diagnoses

Here is how tools diagnose the attribute obsolete issue for HTML element 17 of the Northwest Natural Gas page.

1. The allowtransparency attribute on the iframe element is obsolete. Use CSS instead.

   Tool: Html Checker (World Wide Web Consortium)

2. The scrolling attribute on the iframe element is obsolete. Use CSS instead.

   Tool: Html Checker (World Wide Web Consortium)