<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="white" />
    <meta name="viewport" content="width=640,user-scalable=no, target-densitydpi=device-dpi, minimal-ui, viewport-fit=cover">
    <title>vue-input-keyboard</title>
    <style type="text/css">
body {
    color: #2c3e50;
    background-color: #f1f4f8;
    width: 640px;
    font-size: 36px;
    margin: 0 auto!important;