button only allowed in a drop-down select Web Standard

Description

A button element is only allowed as a child of a select element that is a drop-down box (one without a size attribute greater than 1 and without a multiple attribute).

Applicable standards

• HTML

Change history

• 2026.62 Oct 2026 Added.

This page describes a web site issue detected in HTML documents by SortSite Desktop and OnDemand Suite.

Rule ID: W3cHtml5SelectButtonNotDropDown