A tentative study of HTML5---video + DOM (vedio playback)

Lang= "en" under the 1:HTML5 development environment

2:

<video width= "height=" controls= "Controls" >     which  controls= the controls controls property for adding play, pause, and volume controls.

<div style= "Text-align:center" >
<button onclick= "Bigen ()" > Play/Pause </button>
<button onclick= "big ()" > </button>
<button onclick= "centre ()" > in </button>
<button onclick= "Small ()" > Small </button>
</br>
<video id= "Video1" width= "420" style= "margin-top;15px" controls= "Controls" >
<source src= "Mp4/mov_bbb.mp4" type= "Video/mp4"/>
<source scr= "Mp4/mov_bbb.mp4" type= "Video/ogg" >
</video>
</div>
<script type= "Text/javascript" >
var Myone1=document.getelementbyid ("Video1");

function Bigen ()
{
if (myone1.paused)
Myone1.play ();
Else
Myone1.pause ();
}
Function Big ()
{
myone1.width=560;
}
Function Centre ()
{
myone1.width=420;
}
function Small ()
{
myone1.width=320;
}
</script>

A tentative study of HTML5---video + DOM (vedio playback)