first commit

wp-includes/blocks/navigation-link/editor.css

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+.wp-block-navigation .block-list-appender{
+  position:relative;
+}
+.wp-block-navigation .has-child{
+  cursor:pointer;
+}
+.wp-block-navigation .has-child .wp-block-navigation__submenu-container{
+  z-index:28;
+}
+.wp-block-navigation .has-child:hover .wp-block-navigation__submenu-container{
+  z-index:29;
+}
+.wp-block-navigation .has-child.has-child-selected>.wp-block-navigation__submenu-container,.wp-block-navigation .has-child.is-selected>.wp-block-navigation__submenu-container{
+  height:auto !important;
+  min-width:200px !important;
+  opacity:1 !important;
+  overflow:visible !important;
+  visibility:visible !important;
+  width:auto !important;
+}
+.wp-block-navigation-item .wp-block-navigation-item__content{
+  cursor:text;
+}
+.wp-block-navigation-item.is-editing,.wp-block-navigation-item.is-selected{
+  min-width:20px;
+}
+.wp-block-navigation-item .block-list-appender{
+  margin:16px auto 16px 16px;
+}
+
+.wp-block-navigation-link__invalid-item{
+  color:#000;
+}
+.wp-block-navigation-link__placeholder{
+  background-image:none !important;
+  box-shadow:none !important;
+  position:relative;
+  text-decoration:none !important;
+}
+.wp-block-navigation-link__placeholder .wp-block-navigation-link__placeholder-text span{
+  -webkit-text-decoration:wavy underline;
+          text-decoration:wavy underline;
+  -webkit-text-decoration-skip-ink:none;
+          text-decoration-skip-ink:none;
+  text-underline-offset:.25rem;
+}
+.wp-block-navigation-link__placeholder.wp-block-navigation-item__content{
+  cursor:pointer;
+}
+.link-control-transform{
+  border-top:1px solid #ccc;
+  padding:0 16px 8px;
+}
+
+.link-control-transform__subheading{
+  color:#1e1e1e;
+  font-size:11px;
+  font-weight:500;
+  margin-bottom:1.5em;
+  text-transform:uppercase;
+}
+
+.link-control-transform__items{
+  display:flex;
+  justify-content:space-between;
+}
+
+.link-control-transform__item{
+  flex-basis:33%;
+  flex-direction:column;
+  gap:8px;
+  height:auto;
+}