--- a/devtools/client/themes/inspector.css
+++ b/devtools/client/themes/inspector.css
@@ -94,113 +94,8 @@
   }
 }
 
 /* Add element toolbar button */
 
 #inspector-element-add-button::before {
   background-image: url("chrome://devtools/skin/images/add.svg");
 }
-
-/* Tooltip: Events */
-
-#devtools-tooltip-events-container {
-  margin: -4px; /* Compensate for the .panel-arrowcontent padding. */
-  max-width: 590px;
-  overflow-y: auto;
-}
-
-.event-header {
-  display: flex;
-  align-items: center;
-  cursor: pointer;
-}
-
-.event-header:first-child {
-  border-width: 0;
-}
-
-.event-header:not(:first-child) {
-  border-width: 1px 0 0 0;
-}
-
-.event-tooltip-event-type,
-.event-tooltip-filename,
-.event-tooltip-attributes {
-  margin-inline-start: 0;
-  flex-shrink: 0;
-  cursor: pointer;
-}
-
-.event-tooltip-event-type {
-  font-weight: bold;
-  font-size: 13px;
-}
-
-.event-tooltip-filename {
-  margin-inline-end: 0;
-  font-size: 100%;
-  flex-shrink: 1;
-}
-
-.event-tooltip-debugger-icon {
-  width: 16px;
-  height: 16px;
-  margin-inline-end: 4px;
-  opacity: 0.6;
-  flex-shrink: 0;
-}
-
-.event-tooltip-debugger-icon:hover {
-  opacity: 1;
-}
-
-.event-tooltip-content-box {
-  display: none;
-  height: 100px;
-  overflow: hidden;
-  margin-inline-end: 0;
-  border: 1px solid var(--theme-splitter-color);
-  border-width: 1px 0 0 0;
-}
-
-.event-toolbox-content-box iframe {
-  height: 100%;
-}
-
-.event-tooltip-content-box[open] {
-  display: block;
-}
-
-.event-tooltip-source-container {
-  margin-top: 5px;
-  margin-bottom: 10px;
-  margin-inline-start: 5px;
-  margin-inline-end: 0;
-}
-
-.event-tooltip-source {
-  margin-bottom: 0;
-}
-
-.event-tooltip-attributes-container {
-  display: flex;
-  flex-shrink: 0;
-  flex-grow: 1;
-  justify-content: flex-end;
-}
-
-.event-tooltip-attributes-box {
-  display: flex;
-  flex-shrink: 0;
-  align-items: center;
-  border-radius: 3px;
-  padding: 2px;
-  margin-inline-start: 5px;
-  background-color: var(--theme-body-color-alt);
-  color: var(--theme-toolbar-background);
-}
-
-.event-tooltip-attributes {
-  margin: 0;
-  font-size: 9px;
-  padding-top: 2px;
-}

--- a/devtools/client/themes/tooltips.css
+++ b/devtools/client/themes/tooltips.css
@@ -190,8 +190,114 @@
   margin-top: 4px;
   transform: rotate(225deg);
 }
 
 .tooltip-top .tooltip-arrow:before {
   margin-top: -12px;
   transform: rotate(45deg);
 }
+
+/* Tooltip: Events */
+
+#devtools-tooltip-events-container {
+  margin: -4px; /* Compensate for the .panel-arrowcontent padding. */
+  max-width: 590px;
+  overflow-y: auto;
+}
+
+.event-header {
+  display: flex;
+  align-items: center;
+  cursor: pointer;
+}
+
+.event-header:first-child {
+  border-width: 0;
+}
+
+.event-header:not(:first-child) {
+  border-width: 1px 0 0 0;
+}
+
+.event-tooltip-event-type,
+.event-tooltip-filename,
+.event-tooltip-attributes {
+  margin-inline-start: 0;
+  flex-shrink: 0;
+  cursor: pointer;
+}
+
+.event-tooltip-event-type {
+  font-weight: bold;
+  font-size: 13px;
+}
+
+.event-tooltip-filename {
+  margin-inline-end: 0;
+  font-size: 100%;
+  flex-shrink: 1;
+}
+
+.event-tooltip-debugger-icon {
+  width: 16px;
+  height: 16px;
+  margin-inline-end: 4px;
+  opacity: 0.6;
+  flex-shrink: 0;
+}
+
+.event-tooltip-debugger-icon:hover {
+  opacity: 1;
+}
+
+.event-tooltip-content-box {
+  display: none;
+  height: 100px;
+  overflow: hidden;
+  margin-inline-end: 0;
+  border: 1px solid var(--theme-splitter-color);
+  border-width: 1px 0 0 0;
+}
+
+.event-toolbox-content-box iframe {
+  height: 100%;
+}
+
+.event-tooltip-content-box[open] {
+  display: block;
+}
+
+.event-tooltip-source-container {
+  margin-top: 5px;
+  margin-bottom: 10px;
+  margin-inline-start: 5px;
+  margin-inline-end: 0;
+}
+
+.event-tooltip-source {
+  margin-bottom: 0;
+}
+
+.event-tooltip-attributes-container {
+  display: flex;
+  flex-shrink: 0;
+  flex-grow: 1;
+  justify-content: flex-end;
+}
+
+.event-tooltip-attributes-box {
+  display: flex;
+  flex-shrink: 0;
+  align-items: center;
+  border-radius: 3px;
+  padding: 2px;
+  margin-inline-start: 5px;
+  background-color: var(--theme-body-color-alt);
+  color: var(--theme-toolbar-background);
+}
+
+.event-tooltip-attributes {
+  margin: 0;
+  font-size: 9px;
+  padding-top: 2px;
+}
+