body {
    font-family: "Times New Roman", Times, serif;
    font-size: 16px;
    line-height: 1.5;
    width: 95vw;
    margin: 0 auto;
    padding: 0;
    box-sizing: border-box;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

h1 {
    display: inline-flex;
    align-items: center;
    flex-wrap: nowrap;
    white-space: nowrap;
    gap: 0.3em;
    margin: 0 0 0.5rem;
    font-size: 2em;
    font-weight: normal;
    color: black;
}

#color-cube {
    display: block;
    width: 1em;
    height: 1em;
    flex-shrink: 0;
    background: #FF0000;
}

h1 img {
    width: 1em;
    height: 1em;
    flex-shrink: 0;
    object-fit: cover;
}

.intro {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.intro-line {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 1rem;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

.intro-line span {
    flex: 1 1 auto;
    font-size: inherit;
}

.intro-line a {
    font-size: inherit;
}

.intro-line img {
    width: 1.4rem;
    height: 1.4rem;
    object-fit: cover;
    flex-shrink: 0;
    margin-top: 0.15em;
}

ul {
    list-style: none;
    padding-left: 1.25rem;
}

li {
    display: list-item;
    margin-bottom: 0.75rem;
}

ul iframe {
    display: block;
    width: 100%;
    max-width: 560px;
    aspect-ratio: 16 / 9;
    height: auto;
    border: 0;
}

ul iframe[width="640"][height="480"] {
    max-width: 640px;
    aspect-ratio: 4 / 3;
}

.embed-vimeo {
    position: relative;
    width: 100%;
    max-width: 560px;
    padding-top: 56.25%;
}

.embed-vimeo iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    aspect-ratio: auto;
}

ul img,
ul video {
    width: 60vw;
    height: auto;
}

li::before {
    content: "☆";
    font-family: "Times New Roman", Times, serif;
    margin-right: 0.35em;
}

@media (min-width: 768px) {
    body {
        width: 70vw;
        margin: 0 auto;
        padding: 0;
    }

    ul img,
    ul video {
        width: 20vw;
    }
}