#videos .cell {
  padding: 0 .5rem;
}
.embed-container { 
  position: relative; 
  padding-bottom: 56.25%; 
  height: 0; 
  overflow: hidden; 
  max-width: 100%; 
  margin: .5rem 0;
} 
.embed-container iframe, 
.embed-container object, 
.embed-container embed { 
  position: absolute; 
  top: 0; 
  left: 0; 
  width: 100%; 
  height: 100%; 
}