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<iframe width="560" height="315" src="http://www.youtube.com/embed/waM7rRqIiVE" frameborder="0" allowfullscreen></iframe>
You can embed this video on your blog or web page by copying the video embed code above and pasting it into the source code of your page. Adjust the width and height to specify the size you would like it to display.
Thumb Web Page Theatre Mode Overlay Tutorial CSS Javascript Light Switch Toggle Darkness
Embed Source - http://www.youtube.com/watch?v=waM7rRqIiVE
Publish Date - Jun 14, 2012     Author - Adam Khoury
Web Page Theatre Mode Overlay Tutorial CSS Javascript Light Switch Toggle Darkness
Learn to program web page theatre mode darkness using a CSS and JavaScript overlay. This one uses a light switch as the user interface to allow a viewer to toggle the page in and out of theatre mode. Our elements and their CSS are structured a little bit differently to focus on an existing special content box on the page as opposed to bringing a new DIV into the center of the page. Stemming off of our earlier overlay tutorial: http://www.developphp.com/view.php?tid=1254
Lesson Code
<!-- Example by Adam Khoury @ www.developphp.com -->
<!DOCTYPE html>
<html>
<head>
<style type="text/css">
div#overlay {
display:none;
z-index: 2;
background:url(style/opaqueDark.png);
position:fixed;
width:100%;
height:100%;
top:0px;
left:0px;
text-align:center;
}
img#lightSwitch {
position:relative;
z-index: 3;
background:url(images/light_switch_down.jpg) no-repeat;
cursor:pointer;
}
div#special {
position:relative;
z-index: 4;
}
</style>
<script type="text/javascript">
function toggleTheatreMode(){
var overlay = document.getElementById('overlay');
var lightSwitch = document.getElementById('lightSwitch');
if(overlay.style.display == "block"){
overlay.style.display = "none";
lightSwitch.src = "images/light_switch_up.jpg";
lightSwitch.title = "Enter Theatre Mode";
} else {
overlay.style.display = "block";
lightSwitch.src = "images/light_switch_down.jpg";
lightSwitch.title = "Exit Theatre Mode";
}
}
</script>
</head>
<body>
<!-- Start Overlay -->
<div id="overlay"></div>
<!-- End Overlay -->
<h1>Web page theatre mode example</h1>
<img id="lightSwitch" onmousedown="toggleTheatreMode()" src="images/light_switch_up.jpg" width="19" height="46" alt="switch" title="Enter Theatre Mode"> <h3 style="display:inline;">I can put a title here if I want</h3>
<div id="special">
  <iframe width="560" height="315" src="http://www.youtube.com/embed/69-R9GHcGWU" frameborder="0" allowfullscreen></iframe>
</div>
<h2>My web page has a lot off stuff on it</h2>
</body>
</html>

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DevelopPHP.com is a growing educational system packed with video and written material that you can access 24/7 100% free. The focus here in 2013 is spread between five technologies: HTML, CSS, JavaScript, PHP and MySQL. Learn programming theory, database interaction, web design, animation, graphics editing, vector art, 3D modeling, and much more. The educational experience here is a hybrid one offering both high quality video tutorials and code libraries that grow more robust every day. The code libraries are being assembled so that developers can discover all of the building blocks of their favorite languages. The libraries coupled with high quality video tutorials will take you deep down the rabbit hole very quickly. You can also ask questions and get free advice at WebIntersect.com.
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