diff --git a/src/assets/css/chat.scss b/src/assets/css/chat.scss
index b37aee7..07860ca 100644
--- a/src/assets/css/chat.scss
+++ b/src/assets/css/chat.scss
@@ -98,7 +98,7 @@ body {
     font-size: 11 * $chat-text-size;
     color: white;
     background-color: red !important;
-    border-radius: $chat-standard-padding / 2;
+    border-radius: $chat-standard-padding * 0.5;
     height: $chat-standard-padding;
     margin-top: $chat-standard-padding-xs;
     margin-bottom: $chat-standard-padding-xs;
@@ -115,7 +115,7 @@ body {
     line-height: 140%;
     color: white !important;
     background-color: #ff3300 !important;
-    border-radius: $small-button-height / 2;
+    border-radius: $small-button-height * 0.5;
     min-height: 0;
     height: $small-button-height !important;
     margin-top: $chat-standard-padding-xs;
@@ -1589,7 +1589,7 @@ body {
   line-height: 140%;
   color: white !important;
   background-color: #4642f1 !important;
-  border-radius: $small-button-height / 2;
+  border-radius: $small-button-height * 0.5;
   min-height: 0;
   height: $small-button-height !important;
   margin-top: $chat-standard-padding-xs;
diff --git a/src/assets/css/filedrop.scss b/src/assets/css/filedrop.scss
index b66c5dd..88968a1 100644
--- a/src/assets/css/filedrop.scss
+++ b/src/assets/css/filedrop.scss
@@ -65,7 +65,7 @@ $small-button-height: 36px;
     line-height: 140%;
     color: white;
     background-color: $hiliteColor !important;
-    border-radius: $small-button-height / 2;
+    border-radius: $small-button-height * 0.5;
     min-height: 0;
     height: $small-button-height !important;
     margin-top: $chat-standard-padding-xs;
@@ -73,7 +73,7 @@ $small-button-height: 36px;
     &.large {
       padding: 16px 23px;
       height: $large-button-height;
-      border-radius: $large-button-height / 2;
+      border-radius: $large-button-height * 0.5;
     }
   }
 
diff --git a/src/assets/css/join.scss b/src/assets/css/join.scss
index 9ae7f87..9840179 100644
--- a/src/assets/css/join.scss
+++ b/src/assets/css/join.scss
@@ -8,7 +8,7 @@
     color: black;
     background-color: white !important;
     border: 1px solid black;
-    border-radius: $chat-button-height / 2;
+    border-radius: $chat-button-height * 0.5;
     min-height: 0;
     height: $chat-button-height !important;
     margin-top: $chat-standard-padding-xs;
@@ -22,7 +22,7 @@
     color: white;
     background-color: black !important;
     border: 1px solid black;
-    border-radius: $chat-button-height / 2;
+    border-radius: $chat-button-height * 0.5;
     min-height: 0;
     height: $chat-button-height !important;
     margin-top: $chat-standard-padding-xs;
diff --git a/src/assets/css/main.scss b/src/assets/css/main.scss
index e185a6a..27e39c0 100644
--- a/src/assets/css/main.scss
+++ b/src/assets/css/main.scss
@@ -96,7 +96,7 @@ body { position:absolute; top:0; bottom:0; right:0; left:0; }
     color: black;
     background-color: white !important;
     border: 1px solid black;
-    border-radius: $chat-standard-padding / 2;
+    border-radius: $chat-standard-padding * 0.5;
     height: $chat-standard-padding;
     margin-top: $chat-standard-padding-xs;
     margin-bottom: $chat-standard-padding-xs;
@@ -118,7 +118,7 @@ body { position:absolute; top:0; bottom:0; right:0; left:0; }
     font-size: 11 * $chat-text-size;
     color: white;
     border: none;
-    border-radius: $chat-standard-padding / 2;
+    border-radius: $chat-standard-padding * 0.5;
     height: $chat-standard-padding !important;
     min-height: $chat-standard-padding !important;
     margin-top: $chat-standard-padding-xs;