HTML/CSS - Word Shuffle Game Online Editor and JavaScript Compiler

html

<!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width, initial-scale=1" >
    <meta charset="utf-8">
</head>
<body>
    <div id="container">
        <div id="bda">
            <span style="left:5%;animation-delay:3s;animation:anim2 5s ease-in infinite;">💚</span>
            <span style="left:40%;animation-delay:4s;animation:anim2 7s ease-out infinite;">⚡</span>
            <span style="left:65%;animation-delay:2s;animation:anim2 16s ease-in-out infinite;" >🌺</span>
            <span style="left:80%;animation-delay:3s;animation:anim2 8s linear infinite;" >❄</span>
            <span style="left:20%;animation-delay:3s;animation:anim2 9s ease-in infinite;">👍</span>
            <span style="left:50%;animation-delay:4s;animation:anim2 10s ease-out infinite;">🍁</span>
            <span style="left:60%;animation-delay:2s;animation:anim2 11s ease-in-out infinite;" >🎈</span>
            <span style="left:85%;animation-delay:5s;animation:anim2 6s linear infinite;" >🌼</span>
        </div>
        <div id="wContainer">
            <div id="topBar">
                <h3 id="levelDiv"><span id="level">Level <span id="levelNum">1</span></span><span id="coinDiv"><span id="coin">0</span><span id="coinSign">💰</span></span></h3>
                <div id="wcont">
                    <div class="word">
                        <!--<div class="wld">.</div>
                        <div class="wld">.</div>-->
                    </div>
                    <div class="word"></div>
                    <div class="word"></div>

css

body {
    margin:0;
    background: #fff;
    font-family: arial;
    user-select:none;
}
#buymeacoffee img {
    box-shadow: 0px 2px 6px  rgba(0, 0, 0, 0.3);
    border-radius: 10px;
}
    
::-webkit-scrollbar {
    display: none;
}
button {
    cursor:pointer;
}
    
#container {
    position:absolute;
    background:transparent;
    z-index:-2;
    overflow:hidden;
    background-color: #42b0e5;
    /*background-image:URL(https://bdsports.000webhostapp.com/wsnd/9.jpg);*/
    background-size:cover;    

window.onload = function(){
    "use strict";
    
    function _s(x){
        return document.getElementById(x);
    }
    
    var vw = window.innerWidth || 360;
    var vh = window.innerHeight || 560;
    
    var w = (vw > 400) ? 400 : vw;
    var h = (vh > 700) ? 700 : vh;
    
    var ll = (vw-w)/2;
    var ltp = (vh-h)/2;
    
    _s("container").style.backgroundImage = "url(https://bdsports.000webhostapp.com/wsnd/9.jpg)";
    
    var nextBtn = _s("nextBtn");
    var completeDiv = _s("over");
    var levelDiv = _s("levelDiv");
    
    var myDomain = "https://bdsports.000webhostapp.com/";
    var canPlay = false;
    var sounds = {
        "levelComplete" : new Audio(),
        "levelStart" : new Audio(),
        "right" : new Audio(),

BROWSER

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