.uc-video {
  position: relative; 
  padding-bottom: 56.25%; 
  height: 0; 
  overflow:hidden; 
} 
.uc-video iframe, 
.uc-video object, 
.uc-video embed {
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 80%;
  height: 80%; 
}