Make ascii graph responsive

assets/style.css

@@ -220,6 +220,7 @@ pre {
   background: rgba(255, 255, 255, 0.1);
   margin: 0;
   overflow: hidden;
+  font-size: calc(1.3vw - 0.02em);
 }
 
 .columns {
@@ -240,6 +241,13 @@ footer {
   background: #fff;
 }
 
+/* Large desktop */
+@media (min-width: 1230px) {
+  pre {
+    font-size: 16px;
+  }
+}
+
 /* Small desktop */
 @media (min-width: 800px) and (max-width: 1000px) {