CodePen Embed - VwNBLpw

<button id="trigger" popovertarget="menu">Open</button>
<div popover id="menu" anchor="trigger">
  <ul>
    <li><a href="#">Item 1</a></li>
    <li><a href="#">Item 2</a></li>
    <li><a href="#">Item 3</a></li>
  </ul>
</div>

[popover] {
  top: anchor(top);
  left: calc(anchor(right) + 12px);
}

This Pen is owned by azukiazusa1 on CodePen.

See more by @azukiazusa1 on CodePen

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.