html, body, div, span, p, a, em, img, center, table, tbody, tfoot, thead, tr, th, td {
    margin: 0;
    padding: 0;
    border: 0;
    font-size: 100%;
    font-family: inherit;
    vertical-align: baseline;
    color: #191919;
}

a {
    color: #191919;
    text-decoration: none;
}
a:link, a:visited {
    color: #191919;
}

table {
    border-collapse: collapse;
    border-spacing: 0;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1;
}

#container {
    margin: 20px auto;
    width: 1000px;
}

.parent {
    width: 1000px;
    line-height: 30px;
    font-size: 25px;
    font-weight: bold;
    padding: 20px 0;
    color: #007aff;
    text-align: center;
    cursor: pointer;
    margin-bottom: 10px;
    border: 1px solid #007aff;
}
.parent:hover {
    background: #007aff;
    border: 1px solid #fff;
    color: #fff;
}

.child {
    width: 1000px;
    padding: 20px 0 20px 20px;
    background-color: #f9f9f9;
    margin-bottom: 10px;
    display: none;
    border: 1px solid #ddd;
}

.active {
    display: block;
}

.show {
    color: red;
    font-weight: bold;
    text-align: center;
}

.no_mark {
    text-align: center;
}

.child tr:hover {
    background-color: #ddd;
    color: blue;
    font-weight: bold;
}

td {
    padding: 10px;
    font-size: 16px;
    border-bottom: 1px solid #ddd;
}

tr:last-child td {
    border-bottom: none;
}

td.item {
    width: 790px;
}

#img_top {
    height: 195px;
    width: 1000px;
    margin-bottom: 10px;
    background: url("https://media.eoding.com/media/travelagent/132/imagecontent/%EC%96%B4%EB%94%A9-%EC%9E%91%EC%9D%80%EC%8A%A4%EC%99%80%EC%9D%B4%ED%94%84-%EB%B0%B0%EB%84%88-%ED%94%BC%EC%94%A8-002_gYUV1Ef.png") center;
    background-size: auto;
}

#footer_info {
    background: #efefef;
    padding: 5px 5px;
    line-height: 2;
}

#footer_info p {
    border: 1px solid white;
    padding: 10px;
    margin: 0;
}

td.mark{
	color:red;
	font-weight:bold;
}

tr:hover {
    background-color: #f0f0f0;
    color: blue;
    font-weight: bold;
}

@media (max-width: 700px) {
    #container {
        width: 400px;
    }
    .parent {
        width: 400px;
        font-size: 14px;
    }
    .child {
        width: 400px;
        font-size: 10px;
    }
    td {
        font-size: 10px;
        padding: 5px;
        line-height: 1.5;
    }
    td.item {
        width: 270px;
    }
    #img_top {
        width: 400px;
        height: 70px;
        background-size: cover;
    }
    .mark {
        width: 50px;

    }
    .no_mark {
        width: 50px;
    }
}