diff --git a/web_src/css/helpers.css b/web_src/css/helpers.css
index 4d12dfaea2..60ecd7db72 100644
--- a/web_src/css/helpers.css
+++ b/web_src/css/helpers.css
@@ -20,10 +20,7 @@ Gitea's private styles use `g-` prefix.
 
 .g-table-auto-ellipsis td.auto-ellipsis span {
   position: absolute;
-  left: 0;
-  right: 0;
-  top: 0;
-  bottom: 0;
+  inset: 0;
   padding: inherit;
   white-space: nowrap;
   overflow: hidden;
diff --git a/web_src/css/markup/content.css b/web_src/css/markup/content.css
index 6ba4e40072..3eb40eaf29 100644
--- a/web_src/css/markup/content.css
+++ b/web_src/css/markup/content.css
@@ -204,10 +204,7 @@
 
 .markup input[type="checkbox"]::after {
   position: absolute;
-  left: 0;
-  top: 0;
-  bottom: 0;
-  right: 0;
+  inset: 0;
   pointer-events: none;
   background: var(--color-text);
   mask-size: cover;
diff --git a/web_src/css/modules/dimmer.css b/web_src/css/modules/dimmer.css
index a552d103e5..8924821370 100644
--- a/web_src/css/modules/dimmer.css
+++ b/web_src/css/modules/dimmer.css
@@ -3,10 +3,7 @@
 .ui.dimmer {
   position: fixed;
   display: none;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
+  inset: 0;
   background: var(--color-overlay-backdrop);
   opacity: 0;
   z-index: 1000;