@import url(https://fonts.googleapis.com/css?family=Roboto:300);

body {
    background-color: gray;
    font-family: "Roboto", sans-serif;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

header {
    text-align: center;
    font-size: 2rem;
}

.video-wrapper {
    margin-top: 20px;
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio for responsive video */
}

video {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 10px;
    border: 2px solid black;
}