.pdfviewer {
	margin:1% 0;
	border:1px solid #aaa;
	height:700px;
	width:100%;
}
@media (max-width:767px){ 
	.pdfviewer { 
		height:350px;
	}
}

#youtube_link {
        width: 50.7rem;
        height: 30rem;
    }

@media (max-width: 1000px) {
	#youtube_link {
		width: 32rem;
		height: 18rem;
	}
}



<h1>PLANI 내부에서 보이는 에러 입니다.</h1>
<div style="border:1px solid #990000;padding-left:20px;margin:0 0 10px 0;">
<h4>A PHP Error was encountered</h4>
<p>Severity: Notice</p>
<p>Message:  Use of undefined constant php - assumed 'php'</p>
<p>Filename: css/view.php</p>
<p>Line Number: 32</p>


	<p>Backtrace:</p>
									<p style="margin-left:10px">
			File: /data/hom/data/public_html/_apps/core/__Exceptions.php<br />
			Line: 94<br />
			Function: show_php_error			</p>
											<p style="margin-left:10px">
			File: /data/hom/data/public_html/_modules/board/views/board/css/view.php<br />
			Line: 32<br />
			Function: _error_handler			</p>
														<p style="margin-left:10px">
			File: /data/hom/data/public_html/_apps/libraries/Asset.php<br />
			Line: 249<br />
			Function: view			</p>
								<p style="margin-left:10px">
			File: /data/hom/data/public_html/_apps/core/__Controller.php<br />
			Line: 193<br />
			Function: set_hmvc_packed			</p>
								<p style="margin-left:10px">
			File: /data/hom/data/public_html/_modules/board/board.php<br />
			Line: 196<br />
			Function: show			</p>
											<p style="margin-left:10px">
			File: /data/hom/data/public_html/_apps/core/__Controller.php<br />
			Line: 82<br />
			Function: call_user_func_array			</p>
											<p style="margin-left:10px">
			File: /data/hom/data/public_html/_apps/core/__Ci.php<br />
			Line: 537<br />
			Function: call_user_func_array			</p>
								<p style="margin-left:10px">
			File: /data/hom/data/public_html/index.php<br />
			Line: 338<br />
			Function: require_once			</p>
			

</div>