Fix #contentDivider centering: replace justify-self with margin auto

Styles/generic.css

@@ -12,8 +12,7 @@ body {
 	border-radius: 3rem;
 	width: 60vw;
 	height: 0.5vh;
-	justify-self: center;
-	margin: 2.5vh;
+	margin: 2.5vh auto;
 }
 #texto {
 	margin-left: 10vw;