First open your desired You Tube Video. Here for example I am using this video http://youtu.be/-DOlm5UD4d0.
Now Click the Share Tab in the series of tab under Subscribe Tab.
Your position of the page will be this
Now, Click the Embed tab just beside the Share this video Tab. You will get another pop-up just like this
You will get an iframe code. Copy this code and paste it in your HTML page.
Now what shall be the size? How to fit into the proper element? Don't worry. This is very simple.
You can change the width and height in the iframe pasted in the HTML file according to your need , or you can can adjust the Video size in the You Tube Embed panel and then embed that particular iframe code.
Now Click the Share Tab in the series of tab under Subscribe Tab.
Your position of the page will be this
Now, Click the Embed tab just beside the Share this video Tab. You will get another pop-up just like this
You will get an iframe code. Copy this code and paste it in your HTML page.
Now what shall be the size? How to fit into the proper element? Don't worry. This is very simple.
You can change the width and height in the iframe pasted in the HTML file according to your need , or you can can adjust the Video size in the You Tube Embed panel and then embed that particular iframe code.