diff --git a/core/themes/olivero/css/components/dropbutton.pcss.css b/core/themes/olivero/css/components/dropbutton.pcss.css
index 331a2c6a69..b4c26c8f9d 100644
--- a/core/themes/olivero/css/components/dropbutton.pcss.css
+++ b/core/themes/olivero/css/components/dropbutton.pcss.css
@@ -6,18 +6,12 @@
 @import "../base/variables.pcss.css";
 
 .dropbutton {
-  border-top-left-radius: var(--border-radius); /* LTR */
-  border-top-right-radius: 0; /* LTR */
-  border-bottom-right-radius: 0; /* LTR */
-  border-bottom-left-radius: var(--border-radius); /* LTR */
+  border-radius: var(--border-radius) 0 0 var(--border-radius); /* LTR */
   background-color: var(--color--blue-20);
 }
 
 [dir="rtl"] .dropbutton {
-  border-top-left-radius: 0;
-  border-top-right-radius: var(--border-radius);
-  border-bottom-right-radius: var(--border-radius);
-  border-bottom-left-radius: 0;
+  border-radius: 0 var(--border-radius) var(--border-radius) 0;
 }
 
 .js .dropbutton-widget .dropbutton {
@@ -34,10 +28,7 @@
     padding-inline-end: var(--sp1);
     text-decoration: none;
     color: var(--color--white);
-    border-top-left-radius: var(--border-radius); /* LTR */
-    border-top-right-radius: 0; /* LTR */
-    border-bottom-right-radius: 0; /* LTR */
-    border-bottom-left-radius: var(--border-radius); /* LTR */
+    border-radius: var(--border-radius) 0 0 var(--border-radius); /* LTR */
 
     &:hover {
       background-color: var(--color--blue-50);
@@ -52,10 +43,7 @@
 }
 
 [dir="rtl"] .dropbutton-action a {
-  border-top-left-radius: 0;
-  border-top-right-radius: var(--border-radius);
-  border-bottom-right-radius: var(--border-radius);
-  border-bottom-left-radius: 0;
+  border-radius: 0 var(--border-radius) var(--border-radius) 0;
 }
 
 .js .dropbutton-action a:focus {
@@ -64,10 +52,7 @@
 
 .dropbutton-toggle {
   border-inline-start: 1px solid var(--color--white);
-  border-top-left-radius: 0; /* LTR */
-  border-top-right-radius: var(--border-radius); /* LTR */
-  border-bottom-right-radius: var(--border-radius); /* LTR */
-  border-bottom-left-radius: 0; /* LTR */
+  border-radius: 0 var(--border-radius) var(--border-radius) 0; /* LTR */
   background-color: var(--color--blue-20);
 
   &:hover {
@@ -75,10 +60,7 @@
   }
 
   & button {
-    border-top-left-radius: 0; /* LTR */
-    border-top-right-radius: var(--border-radius); /* LTR */
-    border-bottom-right-radius: var(--border-radius); /* LTR */
-    border-bottom-left-radius: 0; /* LTR */
+    border-radius: 0 var(--border-radius) var(--border-radius) 0; /* LTR */
 
     &:focus {
       outline: solid 2px var(--color--blue-70);
@@ -89,16 +71,10 @@
 }
 
 [dir="rtl"] .dropbutton-toggle {
-  border-top-left-radius: var(--border-radius);
-  border-top-right-radius: 0;
-  border-bottom-right-radius: 0;
-  border-bottom-left-radius: var(--border-radius);
+  border-radius: var(--border-radius) 0 0 var(--border-radius);
 
   & button {
-    border-top-left-radius: var(--border-radius);
-    border-top-right-radius: 0;
-    border-bottom-right-radius: 0;
-    border-bottom-left-radius: var(--border-radius);
+    border-radius: var(--border-radius) 0 0 var(--border-radius);
   }
 }
 
diff --git a/core/themes/olivero/css/components/form-select.pcss.css b/core/themes/olivero/css/components/form-select.pcss.css
index c2c51eefae..02a98613b4 100644
--- a/core/themes/olivero/css/components/form-select.pcss.css
+++ b/core/themes/olivero/css/components/form-select.pcss.css
@@ -21,7 +21,7 @@ select {
   background-color: var(--color--white);
   background-image: var(--form-element-select-icon);
   background-repeat: no-repeat;
-  background-position: right var(--sp) center;
+  background-position: right var(--sp) center; /* LTR */
   font-family: inherit;
   font-size: inherit;
   appearance: none;
@@ -74,6 +74,10 @@ select {
   /* Necessary for IE11 to show chevron. */
   @media screen and (-ms-high-contrast: active) {
     background-image: var(--form-element-select-icon);
+
+    &[multiple] {
+      background-image: none;
+    }
   }
 }
 
diff --git a/core/themes/olivero/css/components/form-text.pcss.css b/core/themes/olivero/css/components/form-text.pcss.css
index ee46c95aea..d567ae2b6f 100644
--- a/core/themes/olivero/css/components/form-text.pcss.css
+++ b/core/themes/olivero/css/components/form-text.pcss.css
@@ -25,7 +25,7 @@ textarea {
   padding: 0 var(--sp);
   color: var(--color--gray-0);
   border: 1px solid var(--color--gray-30);
-  border-radius: 3px;
+  border-radius: var(--border-radius);
   background-color: var(--color--white);
   font-family: inherit;
   font-size: inherit;
diff --git a/core/themes/olivero/css/components/messages.pcss.css b/core/themes/olivero/css/components/messages.pcss.css
index 9b5c8b6970..5df84862be 100644
--- a/core/themes/olivero/css/components/messages.pcss.css
+++ b/core/themes/olivero/css/components/messages.pcss.css
@@ -93,13 +93,11 @@
   background: none;
   appearance: none;
 
-  &::before,
-  &::after {
+  &:before,
+  &:after {
     position: absolute;
-    /* stylelint-disable csstools/use-logical */
     top: 50%;
     left: 50%;
-    /* stylelint-enable csstools/use-logical */
     display: block;
     width: 33px;
     height: 2px;
@@ -107,11 +105,11 @@
     background-color: var(--color--gray-30);
   }
 
-  &::before {
+  &:before {
     transform: translate(-50%, -50%) rotate(45deg);
   }
 
-  &::after {
+  &:after {
     transform: translate(-50%, -50%) rotate(-45deg);
   }