모바일 인트로 logo 보여주기

css

/* intro layer */

#introwraper {display:none;position:absolute;top:0;left:0;width:100%;height:100%;z-index: 100;
 background-color: #ffffff;
 background-image: -webkit-gradient(linear,left top,left bottom,from(#ffffff),to(#ffffff));
 background-image: -moz-linear-gradient(top,#ffffff,#ffffff);
 background-image: -o-linear-gradient(top,#ffffff,#ffffff);
 background-image: linear-gradient(to bottom,#ffffff,#ffffff);
}
#introwraper #cell { position: absolute; top: 40%;width:100%;text-align:center;}
#introwraper #cell h1 {color:#fff;-webkit-text-shadow: 0 1px 0 rgba(164,168,171,0.2);text-shadow:0px -1px 0px rgba(000,000,000,1),0px 1px 0px rgba(255,255,255,0.3);font-size:1.6em;} 

#introwr

<?php

if (!defined('_GNUBOARD_')) exit; // 개별 페이지 접근 불가
include_once(G5_THEME_PATH.'/head.sub.php');
include_once(G5_LIB_PATH.'/latest.lib.php');
include_once(G5_LIB_PATH.'/outlogin.lib.php');
include_once(G5_LIB_PATH.'/poll.lib.php');
include_once(G5_LIB_PATH.'/visit.lib.php');
include_once(G5_LIB_PATH.'/connect.lib.php');
include_once(G5_LIB_PATH.'/popular.lib.php');
add_stylesheet('<link rel="stylesheet" href="'.G5_MOBILE_URL.'/style.css">', 0);
?>
<!-- intro -->
<div id="introwraper">
 <div id="cell">
  <h1><img src="<?php echo G5_IMG_URL ?>/logo.png"></h1>
  <!--  <h3><?php echo G5_URL; ?></h3>-->
 </div>
</div>
<script type="text/javascript">
<!--
 // web storage
 var skip_intro = sessionStorage.getItem("skip_intro");
 if (skip_intro != "view" && skip_intro != "undefined") { // 인트로 페이지를 확인하지 않았다면.
  $("#wrapper").hide();
  $("#introwraper").show();
  setInterval(function(){ clearIntro() }, 1500);
 }
 function clearIntro() { // 인트로 레이어 제거.
  $("#introwraper").fadeOut();
  $("#wrapper").fadeIn();
  sessionStorage.setItem("skip_intro", "view");
 }
//-->
</script>
<!--// intro -->
<header id="hd">
    <h1 id="hd_h1"><?php echo $g5['title'] ?></h1> 

...​ 

https://sir.kr/qa/45015