Embedding video in html

autoplay="true"
loop ="false"
width="200"
height="200"
/>

web part styling

to change the border color for webpart:
.ms-WPHeader TD{ border-bottom:1px solid #4e7cb7; border-collapse:collapse; }

Background on html/rich text editor in CEWP

When I added a graphic as background image to the site, CEWP's rich text editor picked it up as its background. Found a simple solution here

simply add a div within the body tag and
body .MyDiv {
background: url("myimage.gif");
}

instead of just
body {
background: url("myimage.gif");
}