@synergy-design-system/components/dist/styles/utility.css

/*
 * This file contains utility classes that can't be contained in a component and must be applied to the light DOM. None
 * of the rules in this stylesheet should target component tags or HTML tags, and all classes *must* start with ".syn-"
 * to reduce the possibility of collisions.
 */
@supports (scrollbar-gutter: stable) {
  .syn-scroll-lock {
    scrollbar-gutter: var(--syn-scroll-lock-gutter) !important;
  }

  .syn-scroll-lock body {
    overflow: hidden !important;
  }
}

/** This can go away once Safari has scrollbar-gutter support. */
@supports not (scrollbar-gutter: stable) {
  .syn-scroll-lock body {
    overflow: hidden !important;
    padding-right: var(--syn-scroll-lock-size) !important;
  }
}

.syn-toast-stack {
  inset-inline-end: 0;
  max-height: 100%;
  max-width: 100%;
  overflow: auto;
  position: fixed;
  top: 0;
  width: 28rem;
  z-index: var(--syn-z-index-toast);
}

.syn-toast-stack syn-alert {
  margin: var(--syn-spacing-small);
}

.syn-toast-stack syn-alert::part(base) {
  box-shadow: var(--syn-shadow-large);
}