diff --git a/src/styles.css b/src/styles.css
index da1ccc2..d48086f 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -227,16 +227,15 @@ label span,
 
 .board {
   position: relative;
-  width: auto;
-  height: 100%;
+  width: 100%;
+  height: auto;
   max-width: 100%;
   max-height: 100%;
   aspect-ratio: var(--board-columns) / var(--board-rows);
   display: grid;
   gap: 0.15rem;
   margin: 0 auto;
-  align-content: center;
-  justify-content: center;
+  align-self: center;
 }
 
 .board__lines {