changed style -> basic table design

style.css

@@ -0,0 +1,18 @@
+#gameTable{
+    position: absolute;
+    transform: translate(-50%, -50%);
+    left: 50%;
+    top: 50%;
+}
+.game{
+    border: solid black 0.1em;
+    border-collapse: collapse;
+}
+.fields{
+    width: 3em;
+    height: 3em;
+}
+body{
+    text-align: center;
+    justify-content: center;
+}