Kilotest: Diagnoses of attribute value invalid violation by HTML element 512 on Cátedra UNESCO Legislación, Sociedad y Patrimonio page

Basics

About the Cátedra UNESCO Legislación, Sociedad y Patrimonio page

• URL: https://catedrapatrimonio.wixsite.com/ugto
• Tested 13 days ago by job auj on 2026-07-07 at 18:07

About HTML element 512

• Tag name: IMG
• Text: [not applicable]
• Start tag: <img sizes="213px" srcset="https://static.wixstatic.com/media/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg/v1/fill/w_213,h_120,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg 1x, https://static.wixstatic.com/media/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg/v1/fill/w_426,h_240,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg 2x" id="comp-m6b5gc8o_img" src="https://static.wixstatic.com/media/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg/v1/fill/w_213,h_120,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/11062b_735a34726eb64df29a56b30b60fe2db8f000.jpg" alt="" style="width:100%;height:100%;object-fit:cover" class="rv3vOe dnHU4q bgVideoposter xSZeaB sFiSiq" width="213" height="120">
• XPath: [not obtained]
• Bounding box: x = 978, y = 1748, width = 213, height = 120

About the attribute value invalid issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1

Diagnoses

Here is how rule engines diagnose the attribute value invalid issue for HTML element 512 of the Cátedra UNESCO Legislación, Sociedad y Patrimonio page.

1. Bad value for attribute srcset on element img: Expected width descriptor but found 1x at …db8f000.jpg 1x,. (When the sizes attribute is present, all image candidate strings must specify a width.)

   Tool: Html Checker API (World Wide Web Consortium)