pleroma-fe/src/components/popover/popover.scss

.popover-trigger-button {
  display: inline-block;
}

.popover {
  z-index: var(--ZI_popover_override, var(--ZI_popovers));
  position: fixed;
  min-width: 0;
  max-width: calc(100vw - 20px);
  box-shadow: var(--shadow);
}

.popover-default {
  &::after {
    content: "";
    position: absolute;
    top: -1px;
    bottom: -1px;
    left: -1px;
    right: -1px;
    z-index: -1px;
    box-shadow: var(--shadow);
    pointer-events: none;
  }

  border-radius: var(--roundness);
  border-color: var(--border);
  border-style: solid;
  border-width: 1px;
  background-color: var(--background);
}

.dropdown-menu {
  display: block;
  padding: 0;
  font-size: 1em;
  text-align: left;
  list-style: none;
  max-width: 100vw;
  z-index: var(--ZI_popover_override, var(--ZI_popovers));
  white-space: nowrap;
  background-color: var(--background);

  .dropdown-divider {
    height: 0;
    margin: 0.5rem 0;
    overflow: hidden;
    border-top: 1px solid var(--border);
  }

  .dropdown-item:not(button, a) {
    padding: 0;
  }

  a.dropdown-item,
  button.dropdown-item,
  .dropdown-item:not(button, a) {
    &.disabled {
      cursor: not-allowed;
    }

    &:not(.disabled) {
      cursor: pointer;
    }

    .main-button {
      box-sizing: border-box;
      padding: var(--__horizontal-gap) var(--__horizontal-gap);
      grid-gap: var(--__horizontal-gap);
      display: grid;
      border: none;
      align-items: center;
      grid-template-columns: 1fr var(--__line-height);
      grid-auto-flow: column;
      grid-auto-columns: auto;

      .menu-checkbox {
        display: inline-block;
        vertical-align: middle;
        min-width: calc(var(--__line-height) + 1px);
        max-width: calc(var(--__line-height) + 1px);
        min-height: calc(var(--__line-height) + 1px);
        max-height: calc(var(--__line-height) + 1px);
        line-height: var(--__line-height);
        text-align: center;
        border-radius: 0;
        box-shadow: var(--shadow);
        margin-right: var(--__horizontal-gap);

        &.menu-checkbox-checked::after {
          font-size: 1.25em;
          content: "✓";
        }

        &.-radio {
          border-radius: 9999px;

          &.menu-checkbox-checked::after {
            font-size: 2em;
            content: "•";
          }
        }
      }
    }

    &.-icon {
      .main-button {
        grid-template-columns: var(--__line-height) 1fr;
      }
    }
  }
}