diff --git a/src/features/online-board/components/DayTabs/DayTabs.scss b/src/features/online-board/components/DayTabs/DayTabs.scss
index 4776105f..7a0d80ca 100644
--- a/src/features/online-board/components/DayTabs/DayTabs.scss
+++ b/src/features/online-board/components/DayTabs/DayTabs.scss
@@ -46,7 +46,7 @@
     min-width: 0;
   }
 
-  @media (max-width: 768px) {
+  @media (max-width: 640px) {
     display: none;
   }
 }
@@ -91,11 +91,11 @@
 .day-select-wrap {
   display: none;
 
-  @media (max-width: 768px) {
+  @media (max-width: 640px) {
     display: block;
     background: colors.$white;
     padding: 12px 16px;
-    border-radius: 8px;
+    border-radius: vars.$border-radius;
   }
 
   &__caption {
@@ -109,11 +109,11 @@
 .day-select {
   display: none;
 
-  @media (max-width: 768px) {
+  @media (max-width: 640px) {
     display: block;
     width: 100%;
     padding: 12px;
-    border-radius: 8px;
+    border-radius: vars.$border-radius;
     background: colors.$white;
     border: 1px solid colors.$border;
     font-size: 14px;