Usage of font face = "webdings"

Today, when debugging the project, we found that the calendar control uses the left and right arrows. Later, we used ie9's debugging function to find that <font face = 'webboard'>, later, we can see that this is a special character font built in windows. Here is the introduction:
1. Usage:
<Font face = 'webboard' size = "14"> I </font>
Here, I can be represented by a few characters. The specific meanings are as follows:
0 1 2 3 4 5 6 7 8 9 a B c d e f g h I j k l m n o p q r s t u v w x y z a B c d e f g h I j k l m n o p q r s t u v w x Y Z ,. /'[] \\=-<>? : \ "{} | + _) (* & ^ % $ #@! '~

Figure:

In sequence.

2. However, if other fonts are added to the page, the style will expire and be restored to its original characters. So pay special attention to this situation when using it.
3. Firefox has poor compatibility. The main problem is the page header. impact.