Add Superstructure to y2024 Webpage

Signed-off-by: Mirabel Wang <mirabel.17.wang@gmail.com>
Change-Id: I73b04d4e28e9b98da84fb0ad03104854db90e896
diff --git a/y2024/www/styles.css b/y2024/www/styles.css
index c2c44d2..3259478 100644
--- a/y2024/www/styles.css
+++ b/y2024/www/styles.css
@@ -25,13 +25,20 @@
   border-collapse: collapse;
   padding: 5px;
   margin: 10px;
+  table-layout: fixed;
+  width: 450px;
+  overflow: hidden;
 }
 
 th, td {
-  text-align: right;
+  text-align: left;
   width: 70px;
 }
 
+table:first-child {
+  text-align: center;
+}
+
 td:first-child {
   width: 150px;
 }
@@ -71,4 +78,4 @@
   display: table-cell;
   padding: 5px;
   text-align: right;
-}
+}
\ No newline at end of file