body {
    background-color: lightgray;
    margin:0;
    padding:0;
}
#wrapper {
    margin: 0 auto;
    min-height: 100vh;
    background-color: white;
    max-width: 68rem;
    box-sizing:border-box;
}
.content {
    box-sizing:border-box;
    overflow: auto;
    padding: 0 2rem;
}
.content>h1,h2 {
    text-align: center;
    box-sizing:border-box;
}
.content>p {
    margin-left: 1rem;
    margin-right: 1rem;
}
.content>hr {
    margin: 1rem 12vw;
}
.content>video {
    width: 100%;
    height: auto;
    box-sizing:border-box;
    padding: 0.5rem 3vw;
}
.content>img {
    width: 100%;
    height:auto;
    box-sizing:border-box;
}