Flexbox Behavior in Elements Despite attempts to apply flexbox styles to elements, the behavior remains inconsistent across browsers. In both Firefox and Chrome, behaves differently from other block-level elements when assigned a flexbox display property (e.g., display: flex). Rather than aligning its children horizontally, the children are stacked vertically, similar to inline-level elements. Interestingly, Internet Explorer exhibits normal flexbox behavior for . This behavior is not considered a bug. According to Bug 984869, button elements are implemented differently in browsers due to their inherent complexity, making CSS implementations subject to limitations. Similar behavior is observed in elements. However, Firefox 46 has addressed this issue by implementing Flexbox for . This means that recent versions of Firefox render elements with expected flexbox behavior. For older browsers or scenarios where consistent cross-browser compatibility is necessary, it is recommended to use a wrapper element such as inside to achieve desired flexbox layouts.