.sbb-swup-container {
  min-height: 1px;
}

.transition-fade {
  opacity: 1;
  transition: opacity var(--sbb-swup-speed, 350ms) ease;
}

html.is-changing .transition-fade {
  opacity: 0;
}

html.is-animating .transition-fade {
  opacity: 0;
}

html.is-rendering .transition-fade {
  opacity: 1;
}

html.is-changing .transition-fade,
html.is-rendering .transition-fade,
html.is-animating .transition-fade {
  will-change: opacity;
}