body{height:100%;background-color:#f0f8ff}header{position:relative;background-color:#000;height:40vh;min-height:25rem;width:100%;overflow:hidden}header video{position:absolute;top:50%;left:50%;min-width:100%;min-height:100%;width:auto;height:auto;z-index:0;-ms-transform:translateX(-50%) translateY(-50%);-moz-transform:translateX(-50%) translateY(-50%);-webkit-transform:translateX(-50%) translateY(-50%);transform:translate(-50%) translateY(-50%)}header .container{position:relative;z-index:2}header .overlay{position:absolute;top:0;left:0;height:100%;width:100%;background-color:#000;opacity:.5;z-index:1}