some .css files

src/components/AiCamera.css

+.li {
+  color: #F1BC53;
+  text-align: left;
+}
+
+.div {
+  margin: 0 auto;
+}

src/components/GameUI.css

+.choices {
+  margin: 0 auto;
+  text-align: center;
+}
+
+.choice {
+  background: #C59A80;
+  border: 4px solid #DE8357;
+  border-radius: 50%;
+  display: inline-block;
+  margin: 0 20px ;
+  padding: 30px;
+  transition:  all 0.3s ease;
+}
+
+.choice:hover {
+  cursor: pointer;
+  background: #F1BC53;
+}

src/components/Header.css

+div {
+  background: #2c292c;
+  padding: 28px;
+}
+
+h1 {
+  color: #F1BC53;
+  text-align: center;
+}
+
+a {
+  color: #F1BC53;
+  text-align: center;
+}

src/components/Result.css

@@ -8,8 +8,11 @@ table {
   font-weight: bold;
   text-align: center;
   display: inline-block;
-  margin: 0 20px;
+  margin: 0 auto;
   padding: 30px;
+  display: table;
+  justify-content: center;
+  align-items: center;
 }
 
 th, td {