diff --git a/src/thsf/static/css/style.css b/src/thsf/static/css/style.css
index 6488524..bd85f38 100644
--- a/src/thsf/static/css/style.css
+++ b/src/thsf/static/css/style.css
@@ -65,19 +65,16 @@ span.place {
   flex-direction: line;
   justify-content: flex-start;
   align-items: start;
+  height: 100vh;
 }
 
 #center_wrapper {
-  background-color: red;
-  position: fixed;
-  top: 0;
-  bottom:0;
-  height: 100vh; /* viewport height */
-  overflow-y: scroll;
   display: flex;
   flex-direction: column;
   justify-content: flex-start;
   align-items: center;
+  flex-grow: 10;
+  overflow: auto;
 }
 
 #header {
@@ -101,6 +98,7 @@ img.logo {
   justify-content: flex-start;
   align-items: center;
   gap: 2em;
+  flex-grow: 1;
 }
 
 .button {