Numeric Keypad option for mobile browsers
Add an input type property to text box controls (and other controls as appropriate) to use the keypad instead of the QWERTY keyboard layout for mobile browsers. In HTML5 this is the input tag, type attribute (https://www.w3schools.com/tags/att_input_type.asp) . A few useful types include text (current), number, email, url, and maybe password. On most mobile environments, each type has a different keyboard layout.