7 files changed, 68 insertions, 25 deletions
diff --git a/web_src/css/modules/animations.css b/web_src/css/modules/animations.css
index 8edf31ddbd..deaaf83680 100644
--- a/web_src/css/modules/animations.css
+++ b/web_src/css/modules/animations.css
@@ -52,8 +52,7 @@ form.single-button-form.is-loading .button {
 }
 
 .markup pre.is-loading,
-.editor-loading.is-loading,
-.pdf-content.is-loading {
+.editor-loading.is-loading {
   height: var(--height-loading);
 }
 
diff --git a/web_src/css/modules/breadcrumb.css b/web_src/css/modules/breadcrumb.css
index ca488c2150..77e31ef627 100644
--- a/web_src/css/modules/breadcrumb.css
+++ b/web_src/css/modules/breadcrumb.css
@@ -1,14 +1,10 @@
 .breadcrumb {
   display: flex;
-  flex-wrap: wrap;
   align-items: center;
   gap: 3px;
+  overflow-wrap: anywhere;
 }
 
 .breadcrumb .breadcrumb-divider {
   color: var(--color-text-light-2);
 }
-
-.breadcrumb > * {
-  display: inline;
-}
diff --git a/web_src/css/modules/dimmer.css b/web_src/css/modules/dimmer.css
index 8924821370..7d1ca6171a 100644
--- a/web_src/css/modules/dimmer.css
+++ b/web_src/css/modules/dimmer.css
@@ -20,7 +20,7 @@
   opacity: 1;
 }
 
-.ui.dimmer > * {
+.ui.dimmer > .ui.modal {
   position: static;
   margin-top: auto !important;
   margin-bottom: auto !important;
diff --git a/web_src/css/modules/label.css b/web_src/css/modules/label.css
index 1e42668aa1..bb6f1b512f 100644
--- a/web_src/css/modules/label.css
+++ b/web_src/css/modules/label.css
@@ -4,25 +4,19 @@
 .ui.label {
   display: inline-flex;
   align-items: center;
-  gap: .25rem;
+  gap: var(--gap-inline);
   min-width: 0;
-  vertical-align: middle;
-  line-height: 1;
+  max-width: 100%;
   background: var(--color-label-bg);
   color: var(--color-label-text);
-  padding: 0.3em 0.5em;
-  font-size: 0.85714286rem;
+  padding: 2px 6px;
+  font-size: var(--font-size-label);
   font-weight: var(--font-weight-medium);
   border: 0 solid transparent;
-  border-radius: 0.28571429rem;
+  border-radius: var(--border-radius);
   white-space: nowrap;
-}
-
-.ui.label:first-child {
-  margin-left: 0;
-}
-.ui.label:last-child {
-  margin-right: 0;
+  overflow: hidden;
+  text-overflow: ellipsis;
 }
 
 a.ui.label {
@@ -292,3 +286,58 @@ a.ui.ui.ui.basic.grey.label:hover {
 .ui.large.label {
   font-size: 1rem;
 }
+
+/* To let labels break up and wrap across multiple lines (issue title, comment event), use "display: contents here" to apply parent layout.
+If the labels-list itself needs some layouts, use extra classes or "tw" helpers. */
+.labels-list {
+  display: contents;
+  font-size: var(--font-size-label); /* it must match the label font size, otherwise the height mismatches */
+}
+
+.labels-list a {
+  max-width: 100%; /* for ellipsis */
+}
+
+.labels-list .ui.label {
+  min-height: 20px;
+  padding-top: 0;
+  padding-bottom: 0;
+}
+
+.with-labels-list-inline .labels-list .ui.label + .ui.label {
+  margin-left: var(--gap-inline);
+}
+
+.with-labels-list-inline .labels-list .ui.label {
+  line-height: var(--line-height-default);
+}
+
+/* Scoped labels with different colors on left and right */
+.ui.label.scope-parent {
+  background: none !important;
+  padding: 0 !important;
+  gap: 0 !important;
+}
+
+.ui.label.scope-parent > .ui.label {
+  margin: 0 !important; /* scoped label's margin is handled by the parent */
+}
+
+.ui.label.scope-left {
+  border-bottom-right-radius: 0;
+  border-top-right-radius: 0;
+}
+
+.ui.label.scope-middle {
+  border-radius: 0;
+}
+
+.ui.label.scope-right {
+  border-bottom-left-radius: 0;
+  border-top-left-radius: 0;
+}
+
+.ui.label.archived-label {
+  filter: grayscale(0.5);
+  opacity: 0.5;
+}
diff --git a/web_src/css/modules/list.css b/web_src/css/modules/list.css
index 73760390de..46422cb97d 100644
--- a/web_src/css/modules/list.css
+++ b/web_src/css/modules/list.css
@@ -5,7 +5,6 @@
   list-style-type: none;
   margin: 1em 0;
   padding: 0;
-  font-size: 1em;
 }
 
 .ui.list:first-child {
diff --git a/web_src/css/modules/navbar.css b/web_src/css/modules/navbar.css
index b09b271ad4..ab431e3675 100644
--- a/web_src/css/modules/navbar.css
+++ b/web_src/css/modules/navbar.css
@@ -129,8 +129,8 @@
   background: var(--color-primary);
   border: 2px solid var(--color-nav-bg);
   position: absolute;
-  left: 6px;
-  top: -9px;
+  left: calc(100% - 9px);
+  bottom: calc(100% - 9px);
   min-width: 17px;
   height: 17px;
   border-radius: 11px; /* (height + 2 * borderThickness) / 2 */
diff --git a/web_src/css/modules/toast.css b/web_src/css/modules/toast.css
index 1145f3b1b5..330d3b176e 100644
--- a/web_src/css/modules/toast.css
+++ b/web_src/css/modules/toast.css
@@ -3,7 +3,7 @@
   position: fixed;
   opacity: 0;
   transition: all .2s ease;
-  z-index: 500;
+  z-index: var(--z-index-toast);
   border-radius: var(--border-radius);
   box-shadow: 0 8px 24px var(--color-shadow);
   display: flex;