update: improve layout

static/site.css

@@ -22,6 +22,16 @@ body{
     color: darkgray;
 }
 
+.form-container{
+    margin: auto;
+    padding: 20px;
+    width: fit-content;
+}
+
+.form-button{
+
+}
+
 .overview-tile{
     color: black;
 }