* {
    box-sizing: border-box;
}

.container {
    width: min(767px, 96%);
    margin: 0 auto;
    padding: 1em;
    background: #eef;
}

.container>p {
    margin: 0 0 2em 0;
}

.dl-link::before {
    content: "DLリンク";
    font-size: small;
    background: green;
    padding: 0.2em 0.55em;
    border-radius: 2px;
    color: #fff;
    display: inline-block;
    height: 1lh;
}

.dl-link {
    position: relative;
    padding-bottom: 0.5lh;
}

.dl-link::after {
    position: absolute;
    content: "";
    display: block;
    top: 1lh;
    left: 9px;
    border-width: 0.25lh;
    border-style: solid;
    border-color: green transparent transparent;
    pointer-events: none;
    user-select: none;
}

.dl-link p {
    margin: 0;
    margin-top: 0.5em;
}

.dl-link p a {
    text-decoration: none;
}

body {
    background: url(background.webp) center center / calc(20.8333vw) calc(20.8333vw) repeat;
}

* {
    font-family: sans-serif;
}