Too little margin between Admin bar and Breadcrumb

[olafgrabienski]

After an update to Gin alpha 10, I noticed a small visual regression on my Backdrop sites: The margin between Admin bar and Breadcrumb is smaller than before – see screenshot below.

The following CSS definition from gin/dist/css/components/toolbar_secondary.css that apply to the <header> element, which contains the Breadcrumb, might be related:

.gin-secondary-toolbar {
  z-index: 100;
  position: relative;
  display: flex;
  align-items: center;
  padding-top: var(--gin-spacing-xs);
  padding-bottom: var(--gin-spacing-xs);
  margin-top: -1px;
  height: var(--gin-toolbar-secondary-height);
  border-bottom: 1px solid var(--gin-border-color-secondary);
  box-sizing: border-box;
}

When I disable the line height: var(--gin-toolbar-secondary-height); in my browser dev tools, the issue is fixed for me. When I enable it again, the height of the element is 0 (zero).

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Screenshot:

[laryn]

Good catch -- I think in Drupal the defaults were all set to zero to make them easier to set based on the menu/nav style chosen, but since we don't have multiple nav styles to choose from at the moment in Backdrop, it threw things off a bit. I've made a fix for now.