Kilotest: Diagnoses of sizes attribute invalid violation by HTML element 560 on 350 Sacramento page

Here is how tools diagnose the sizes attribute invalid issue for HTML element 560 of the 350 Sacramento page.

Basics

• About the sizes attribute invalid issue
  • Why it matters: Item behaves improperly
  • Priority: highest
  • Related WCAG standard: 1.3.1
• About the 350 Sacramento page
  • URL: https://350sacramento.org/
  • Tested on 2026-04-02 at 14:10
• About HTML element 560
  • Tag name: IMG
  • Text: [not applicable]
  • Start tag: <img decoding="async" class="img-with-animation skip-lazy nectar-lazy" data-delay="0" height="150" width="150" data-animation="none" data-nectar-img-src="https://350sacramento.org/wp-content/uploads/2023/11/Katie-McCammon-350-Sacramento-Program-Director-150x150.jpg" src="data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D'http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg'%20viewBox%3D'0%200%20150%20150'%2F%3E" alt="Katie McCammon 350 Sacramento Program Director" data-nectar-img-srcset="https://350sacramento.org/wp-content/uploads/2023/11/Katie-McCammon-350-Sacramento-Program-Director-150x150.jpg 150w, https://350sacramento.org/wp-content/uploads/2023/11/Katie-McCammon-350-Sacramento-Program-Director-140x140.jpg 140w, https://350sacramento.org/wp-content/uploads/2023/11/Katie-McCammon-350-Sacramento-Program-Director-100x100.jpg 100w, https://350sacramento.org/wp-content/uploads/2023/11/Katie-McCammon-350-Sacramento-Program-Director.jpg 300w" sizes="(max-width: 150px) 100vw, 150px">
  • XPath: [not obtained]
  • Bounding box: x = 301, y = 3964, width = 242, height = 242

Diagnoses

1. The sizes attribute must only be specified if the srcset attribute is also specified.

   Tool: Html Checker API (World Wide Web Consortium)