1<!-- Trigger -->
2<button popovertarget="context" id="trigger" popovertargetaction="toggle">
3  Open Menu
4</button>
5<!-- Popover -->
6<nav id="context" anchor="trigger" popover="auto">
7  <ul>
8    <li><a>Go to artist</a></li>
9  </ul>
10</nav>

1#pop {
2  transition-property: display, overlay, scale, opacity;
3  transition-duration: 0.5s;
4  transition-behavior: allow-discrete;
5  &:popover-open {
6    opacity: 1;
7    scale: 1;
8    @starting-style {
9      opacity: 0;
10      scale: 0.9;
11    }
12  }
13}