javascript - Google Map Mark Not Working -


i following tutorial of google map on google developer , trying make google map mark. after made that, pin on map shows white rectangle, instead of map pin. here link made

here code:

head.php:

<head>     <title><?php echo $title; ?></title>     <meta charset = "utf-8">     <meta name="viewport" content="width=device-width, initial-scale=1.0">     <link rel="stylesheet" type="text/css" href="style/sponsor_enquiry_style.css">     <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>     <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>     <script type="text/javascript" src="script/script.js"></script>     <script type="text/javascript" src="script/map.js"></script> </head> 

enquiry.php

<!doctype html> <html> <?php     $title = 'enquiry';     include 'php/head.php'; ?> <body>     <?php         include 'php/nav.php';         include 'php/header.php';         include 'php/preloader.php';     ?>     <section class = "main_content">         <div id = "enquiry_content">             <div id = "opening_info">                 <h1>// opening</h1>                 <h1 class = "font_ch">開幕典禮</h1>                 <h2>13.6.15</h2>                 <p>15:00–17:00</p>                 <p>room cva 104, communication , visual arts building, hkbu, 5 hereford road, kowloon tong, kowloon</p>                 <p class = "font_ch">九龍塘禧福道五號香港浸會大學傳理視藝大樓104室</p>             </div>             <div id = "exhibition_info">                 <h1>// exhibition</h1>                 <h1 class = "font_ch">展覽期</h1>                 <h2>14–21 june</h2>                 <p>11:00–21:00</p>                 <p>koo ming kown exhibition gallery cva bldg, hkbu</p>                 <p class = "font_ch">浸大傳理及視藝大樓顧明均展覽廳</p>             </div>             <div id = "screening_info">                 <h1>// screening</h1>                 <h1 class = "font_ch">放映會</h1>                 <h2>14 &#38; 21 june</h2>                 <p>14:00–18:00</p>                 <p>yue hwa chinese products lecture theatre cva bldg, hkbu</p>                 <p class = "font_ch">浸大傳理及視藝大樓裕華國貨演講廳</p>             </div>             <div id="map-canvas"></div>         </div>     </section>     <?php         include 'php/footer.php';     ?> </body> </html> 

sponsor_enquiry_style.css:

.main_content {     padding: 80px 15px;     width: 600px;     max-width: 95%;     margin: 0 auto; }  .main_content h1 {     display: inline-block; }  .main_content #enquiry_content #opening_info, .main_content #enquiry_content #exhibition_info, .main_content #enquiry_content #screening_info, .main_content #sponsors_content #organizer_info, .main_content #sponsors_content #media_info{     margin: 30px 0; }  .main_content #sponsors_content .sponsor_icons img {     transform: scale(0.85, 0.85);     -o-transform: scale(0.85, 0.85);     -ms-transform: scale(0.85, 0.85);     -webkit-transform: scale(0.85, 0.85); }  #map-canvas {     max-width: 100%;     height: 300px;   } 

map.js

function initialize() {   var mylatlng = new google.maps.latlng(22.334134,114.182465);   var mapoptions = {     zoom: 15,     center: mylatlng   }   var map = new google.maps.map(document.getelementbyid('map-canvas'), mapoptions);    var marker = new google.maps.marker({       position: mylatlng,       map: map,   }); }  google.maps.event.adddomlistener(window, 'load', initialize); 

i'm not sure it's for, in home.css you've defined style <canvas> affects map(which uses canvas). use more specific selector exludes #map-canvas


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