* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html,
body {
    height: 100vh;
    width: 100vw;
}

header {
    height: 25%;
    width: 100%;
    background: #9ddaf2 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
        repeat;
}

.title,
.grass,
.flower,
.flower + div {
    display: inline-block;
}

.flower {
    width: 230px;
    height: 100%;
    background: url(https://resources.blogblog.com/blogblog/data/1kt/watermark/main_overlay_flower.png) no-repeat bottom;
}

.flower + div {
    width: calc(100% - 234px);
    height: 100%;
}

.title {
    width: 100%;
    height: 40px;
}

.title h1 {
    height: 100%;
    font-size: 2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #2b2b2b;
    text-shadow: -3px 3px 3px rgba(255, 255, 255, 0.5);
    cursor: pointer;
}

.grass {
    width: 100%;
    height: 90px;
    background: url(https://resources.blogblog.com/blogblog/data/1kt/watermark/main_cap_flower.png) repeat-x bottom;
}

.more-grass {
    width: 100%;
    height: 100%;
    background: url(https://resources.blogblog.com/blogblog/data/1kt/watermark/main_cap_flower.png) repeat-x bottom;
    position: relative;
    left: -50%;
    z-index: 1;
    opacity: 80%;
}

main {
    width: 100%;
    height: 70%;
    background: #66ba33 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
        repeat;
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 20px;
}

.information-board,
.board {
    background: #ffffff3e url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
        repeat;
    padding: 10px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    height: 100%;
}

.information-board {
    flex: 1 1 200px;
}

.information-board iframe {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 6px;
}

.board {
    flex: 0 0 250px;
}

.space-1 {
    margin-left: 10px;
}

details summary span {
    color: darkgreen;
    text-decoration: underline;
}

details summary span:hover {
    color: yellowgreen;
    text-decoration: underline;
}

footer {
    width: 100%;
    height: 5%;
    background: #4e3021 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
        repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #fff;
    font-size: 0.9rem;
    text-shadow: 1px 1px 2px #000;
}

@media screen and (max-width: 800px) {
    :root {
        overflow-x: hidden;
    }

    header {
        height: 25%;
        width: 100%;
        background: #9ddaf2 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
            repeat;
    }

    .flower {
        display: none;
    }

    .title,
    .grass,
    .flower + div {
        display: inline-block;
    }

    .flower + div {
        width: 100%;
        height: 100%;
    }

    .title {
        width: 100%;
        height: calc(100% - 100px);
    }

    .title h1 {
        height: 100%;
        font-size: 1.5rem;
        display: flex;
        justify-content: center;
        align-items: center;
        color: #2b2b2b;
        text-shadow: -3px 3px 3px rgba(255, 255, 255, 0.5);
        cursor: pointer;
    }

    .grass {
        width: 100%;
        height: 100px;
        background: url(https://resources.blogblog.com/blogblog/data/1kt/watermark/main_cap_flower.png) repeat-x bottom;
    }

    main {
        width: 100%;
        height: 150%;
        background: #66ba33 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
            repeat;
        display: flex;
        flex-direction: column-reverse;
        align-items: center;
        gap: 20px;
        padding: 20px;
    }

    .information-board,
    .board {
        background: #ffffff3e url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
            repeat;
        padding: 10px;
        border-radius: 12px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    }

    .information-board {
        width: 100%;
    }

    .board {
        width: 100%;
    }

    .information-board iframe {
        width: 100%;
        height: 100%;
        border: none;
        border-radius: 6px;
    }

    .space-1 {
        margin-left: 10px;
    }

    footer {
        width: 100%;
        height: 5%;
        background: #4e3021 url(https://resources.blogblog.com/blogblog/data/1kt/watermark/body_background_flower.png)
            repeat;
        display: flex;
        justify-content: center;
        align-items: center;
        color: #fff;
        font-size: 0.8rem;
        text-shadow: 1px 1px 2px #000;
    }
}

@media screen and (max-width: 600px) {
}