Kilotest: Diagnoses of attribute value invalid violation by HTML element 135 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 135

• Tag name: IMG
• Text: [not applicable]
• Start tag: <img fetchpriority="high" sizes="185px" srcset="https://static.wixstatic.com/media/0991d1_946e475721b84923bffd93a1412cc206~mv2.png/v1/crop/x_0,y_144,w_3830,h_2248/fill/w_185,h_109,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/catedra%20unitwin%20unesco.png 1x, https://static.wixstatic.com/media/0991d1_946e475721b84923bffd93a1412cc206~mv2.png/v1/crop/x_0,y_144,w_3830,h_2248/fill/w_370,h_218,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/catedra%20unitwin%20unesco.png 2x" id="img_comp-k5cvvqp0" src="https://static.wixstatic.com/media/0991d1_946e475721b84923bffd93a1412cc206~mv2.png/v1/crop/x_0,y_144,w_3830,h_2248/fill/w_185,h_109,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/catedra%20unitwin%20unesco.png" alt="catedra unitwin unesco.png" style="object-fit:cover" class="gRkIq0 sFiSiq" width="185" height="109">
• XPath: [not obtained]
• Bounding box: x = 1209, y = 31, width = 185, height = 109

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 135 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 …0unesco.png 1x,. (When the sizes attribute is present, all image candidate strings must specify a width.)

   Tool: Html Checker API (World Wide Web Consortium)