Usaswimming.org W3C HTML Markup Validation
HTML markup errors and warnings
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Errors:
A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
Element “img” is missing required attribute “src”.
Bad value “” for attribute “target” on element “a”: Browsing context name must be at least one character long.
No space between attributes.
Attribute “enabled” not allowed on element “div” at this point.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.
Duplicate ID “Content_UpcomingEvents_Index_Div-1-GetEventDetail”.
Warnings:
The “navigation” role is unnecessary for element “nav”.
The first occurrence of ID “Content_UpcomingEvents_Index_Div-1-GetEventDetail” was here.
Empty heading.
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