Fullpage.js cannot display menu

PC version menu is fine, mobile sidebar menu cannot be displayed. Could you tell me how to solve it?
Click to view demo

attach source code: 

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link rel="stylesheet" id="animate-css" href="https://cdn.bootcss.com/animate.css/3.5.2/animate.min.css" type="text/css" media="all">
<link rel="stylesheet" id="bootstrap-css" href="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/css/bootstrap.min.css" type="text/css" media="all">
<link rel="stylesheet" id="style-css" href="https://demo.nicetheme.xyz/grace-style1/wp-content/themes/grace/style.css" type="text/css" media="all">
</head>

<body class="off-canvas-nav-left">
<div id="header" class="navbar-fixed-top">
    <div class="container">
        <div class="logo"></div>

        <div role="navigation" class="site-nav primary-menu">
            <div class="menu-fix-box">
                 <ul>
                     <li><a href="">1</a></li>
                    <li><a href="">2</a></li>
                    <li><a href="">3</a></li>
                </ul>
            </div>
        </div>

        <div class="navbar-mobile hidden-md hidden-lg">
            <button class="navbar-toggle collapsed">
        |||
      </button>
            <div class="collapse navbar-collapse">    
                <ul>
          <li><a href="">1</a></li>
          <li><a href="">2</a></li>
          <li><a href="">3</a></li>
                </ul>
            </div>
            <div class="body-overlay"></div>
        </div>
    </div>    
</div>


<div id="fullpage">
   <div class="section">
       <h1></h1>
   </div>
   <div class="section">
       <h1></h1>
   </div>
   <div class="section">
       <h1></h1>
   </div>
   <div class="section">
       <h1></h1>
   </div>
   <div class="section">
       <h1></h1>
   </div>
</div>

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.0.0-beta1/jquery.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/fullPage.js/2.7.8/jquery.fullPage.js"></script>
<script>
$(document).ready(function(){
  $("-sharpfullpage").fullpage({
    //verticalCentered:false,//falsetrue
    sectionsColor:["black","yellow","red","blue","green"],//sectionbackground-color
    anchors:["page1","page2","page3","page4","page5"],//[]
    //scrollingSpeed:500,//700
    navigation:true,
    navigationPosition:"right",//
    navigationTooltips:["page1","page2","page3","page4","page5"]//
});
});
</script>
<script type="text/javascript">
/* <![CDATA[ */
var suxingme_url = {};
/* ]]> */
</script>
<script type="text/javascript" src="https://cdn.bootcss.com/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script type="text/javascript" src="https://demo.nicetheme.xyz/grace-style1/wp-content/themes/grace/js/plugins.min.js"></script>
<script type="text/javascript" src="https://demo.nicetheme.xyz/grace-style1/wp-content/themes/grace/js/suxingme.js"></script>

</body>
</html>
Html5 javascript css html fullpage.js
Jan.25,2022

there is the following code in fullpage: 

$htmlBody.css({
    'overflow' : 'hidden',
    'height' : '100%'
});

it means that beyond the window range of the document, the element will be hidden, while the translate in the transition animation moves the document document after render , so you can't see the menu.

solution: you can remove the inline style style= "overflow: hidden; height: 100%;" in html, and you can see the desired effect. The style here is added by the fullpage plug-in. You can comment on the code listed above in fullpage, and watch the other adjustments for yourself.

take a look at the code. There is no menu written on the left. The menu of PC is directly hidden in another div. The menu displayed by the side and PC is not a

.

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MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3215d-2b332.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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