.style1 {
    color: #FF0000;
}


.youtube__aspect-ratio {
    width: 85%;
    aspect-ratio: 16 / 9;
}

    .youtube__aspect-ratio iframe {
        width: 85%;
        height: 85%;
    }

.btn {
    display: inline-block;
    border-radius: 5px;
    background-color: green;
    padding: 10px;
    text-align: center;
    color: white;
    height: 80px;
    font-size: 30px;
    text-decoration: none;
}

p {
    font-size: 16pt;
}

body {
    background-color: #FFFF99;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #333;
    margin: 0;
    padding: 0;
}

h1 {
    font-size: 2.5em;
    text-align: center;
    color: #333;
    margin-top: 20px;
    background-color: #ffcc00;
    padding: 10px;
    border-radius: 10px;
}

h2 {
    font-size: 2em;
    color: #555;
    margin-top: 15px;
    background-color: #ffcc66;
    padding: 8px;
    border-radius: 8px;
}

h3 {
    font-size: 1.5em;
    font-weight: 500;
    color: #666;
    margin-top: 10px;
    background-color: #ff9966;
    padding: 6px;
    border-radius: 6px;
}

h4 {
    font-size: 1.2em;
    font-weight: 400;
    color: #777;
    background-color: #ccffff;
    padding: 4px;
    border-radius: 4px;
}

.fb-share-button {
    vertical-align: top !important;
}

p {
    font-size: 1em;
    line-height: 1.6;
    margin: 15px 20px;
    background-color: #fff2cc;
    padding: 10px;
    border-radius: 5px;
}

footer {
    font-weight: 400;
    text-align: center;
    background-color: #ccffff;
    padding: 10px;
    font-size: 0.9em;
}

@media screen and (max-width: 1000px) {
    p {
        font-size: 1.125em;
    }
}

/* リスト */
ol.topic-path {
    margin: 0;
    padding: 7px 5px;
    background-color: #ccffff;
    list-style-type: none;
    font-size: 1em;
}

    /* リスト項目 */
    ol.topic-path li {
        padding-left: 5px;
        display: inline;
    }

        /* リスト項目（最初の項目） */
        ol.topic-path li.first {
            padding-left: 25px;
            background: url(../img/topic-path-home-green.png) no-repeat left;
        }

        /* リンクエリア */
        ol.topic-path li a {
            padding-right: 18px;
            background: url(../img/topic-path-gray.gif) no-repeat right;
            color: #4682b4;
            text-decoration: none;
        }

            /* リンク色（マウスオーバー） */
            ol.topic-path li a:hover {
                color: #79a7cc;
            }

@media screen and (max-width: 499px) {
    body {
        font-size: 1.125em;
    }

    img.cm {
        width: 320px;
        height: 40px;
        border: 0;
    }
}

@media screen and (min-width: 500px) and (max-width: 999px) {
    body {
        font-size: 1.125em;
    }

    img.cm {
        width: 480px;
        height: 60px;
        border: 0;
    }
}

@media screen and (min-width: 1000px) {
    img.cm {
        width: 480px;
        height: 60px;
        border: 0;
    }
}