ISTWCMS-5898: section-spacing-seperator and column-seperator css

ISTWCMS-5898: Adding the bottom lines when narrow and adjusting spacing in cards: event news blog and web page

src/patterns/03-layouts/block/_block.scss

@@ -5,14 +5,33 @@
 
 .block {
   margin-bottom: var(--grid-gap);
+  .in-layout-builder &{
+    outline: var(--size-xs) dashed var(--gray-4) !important;
+  }
   .path-dashboard &,
   &.block-page-title-block,
   &.block-local-tasks-block {
     margin-bottom: 0;
   }
+  // On nodes, move block title to top of block, while preserving spacing underneath.
+  .uw-main & > {
+    h2:first-child,
+    .uw-admin-label + h2 {
+      margin-top: -0.25em; /* Using ems so it adjusts to font size. */
+      padding-top: 0;
+    }
+  }
   &:last-of-type {
     margin-bottom: 0;
   }
+  // On nodes, move an initial header in copy text to top of block, while preserving spacing underneath, unless there was a block title..
+  .uw-main & .uw-admin-label + .contextual + .uw-copy-text,
+  .uw-main & .uw-copy-text:first-child {
+    .uw-copy-text__wrapper > :where(h2, h3, h4, h5, h6):first-child {
+      margin-top: -0.25em; /* Using ems so it adjusts to font size. */
+      padding-top: 0;
+    }
+  }
 }
 
 // disable margin for layout builder blocks