.video-wrapper video, 
.video-wrapper embed, 
.video-wrapper iframe, 
.video-wrapper object  { 
max-width: 100%;
}
.video-wrapper {
width: 1280px;
max-width: 100%;
margin-bottom: 2em;
}
.video-container {
position: relative;
padding-bottom: 56.25%;
height: 0;
overflow: hidden;
}
.video-container iframe,  
.video-container object,  
.video-container embed {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
}