.map-responsive{
overflow:hidden;
padding-bottom:56.25%;
position:relative;
height:0;
}
.map-responsive iframe{
left:0;
top:0;
height:100%;
width:100%;
position:absolute;
}

.img-responsive {
  width: 100%;
  height: auto;
}

.danger {
  background-color: #ffdddd;
  border-left: 6px solid #f44336;
}