var viewer = el("#viewer") code example
Example: var viewer = el("#viewer")
<link href="https://fonts.googleapis.com/css?family=Roboto+Condensed:300,400,700" rel="stylesheet" type="text/css">
<link href="https://fonts.googleapis.com/css?family=Roboto+Condensed:300,400,700" rel="stylesheet" type="text/css">