I'm trying to create a horizontal menu component from material UI but it seems I'm unable to as all the list items are wrapped inside a <div>
The docs show a vertical menu list
What works is if I remove all the outer divs inside the span, and remove the display: blockstyle applied to the span.
<div style="padding: 8px 0px;"><div><span tabindex="0" type="button" style="border: 10px; box-sizing: border-box; display: block; font-family: Roboto, sans-serif; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); cursor: pointer; text-decoration: none; margin: 0px; padding: 0px; outline: none; font-size: 16px; font-weight: inherit; transform: translate(0px, 0px); color: rgba(0, 0, 0, 0.870588); line-height: 16px; position: relative; transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; background: none;"><div><div style="margin-left: 0px; padding: 16px; position: relative;"><div>Inbox</div></div></div></span></div><div><span tabindex="0" type="button" style="border: 10px; box-sizing: border-box; display: block; font-family: Roboto, sans-serif; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); cursor: pointer; text-decoration: none; margin: 0px; padding: 0px; outline: none; font-size: 16px; font-weight: inherit; transform: translate(0px, 0px); color: rgba(0, 0, 0, 0.870588); line-height: 16px; position: relative; transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; background: none;"><div><div style="margin-left: 0px; padding: 16px; position: relative;"><div>Starred</div></div></div></span></div><div><span tabindex="0" type="button" style="border: 10px; box-sizing: border-box; display: block; font-family: Roboto, sans-serif; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); cursor: pointer; text-decoration: none; margin: 0px; padding: 0px; outline: none; font-size: 16px; font-weight: inherit; transform: translate(0px, 0px); color: rgba(0, 0, 0, 0.870588); line-height: 16px; position: relative; transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; background: none;"><div><div style="margin-left: 0px; padding: 16px; position: relative;"><div>Sent mail</div></div></div></span></div><div><span tabindex="0" type="button" style="border: 10px; box-sizing: border-box; display: block; font-family: Roboto, sans-serif; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); cursor: pointer; text-decoration: none; margin: 0px; padding: 0px; outline: none; font-size: 16px; font-weight: inherit; transform: translate(0px, 0px); color: rgba(0, 0, 0, 0.870588); line-height: 16px; position: relative; transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; background: none;"><div><div style="margin-left: 0px; padding: 16px; position: relative;"><div>Drafts</div></div></div></span></div><div><span tabindex="0" type="button" style="border: 10px; box-sizing: border-box; display: block; font-family: Roboto, sans-serif; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); cursor: pointer; text-decoration: none; margin: 0px; padding: 0px; outline: none; font-size: 16px; font-weight: inherit; transform: translate(0px, 0px); color: rgba(0, 0, 0, 0.870588); line-height: 16px; position: relative; transition: all 450ms cubic-bezier(0.23, 1, 0.32, 1) 0ms; background: none;"><div><div style="margin-left: 0px; padding: 16px; position: relative;"><div>Inbox</div></div></div></span></div></div>