[UI] Fix the display size of inputs, which is MUCH too small, and should be dependent on screen size rather than a fixed value (#2143)

index.css

@@ -31,6 +31,11 @@ body {
   transform-origin: top !important;
 }
 
+/* Need adjust input font-size */
+input {
+  font-size: 3.2rem;
+}
+
 #touchControls:not(.visible) {
   display: none;
 }
@@ -244,7 +249,3 @@ input:-internal-autofill-selected {
     -ms-animation: blink normal 4s infinite ease-in-out; /* IE */
     animation: blink normal 4s infinite ease-in-out; /* Opera and prob css3 final iteration */
 }
-
-input {
-  font-size: 16px;
-}