* {
    text-align: center;
    font-family: Arial, sans-serif;
}

footer {
    font-size: 10px;
}

body {
    background-color: #DCDCDC
}

.button {
    background-color: #333;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    border-radius: 4px;
}

input[type=text] {
    text-align: left;
    width: 30%;
    padding: 15px 20px;
    margin: 8px 0;
    box-sizing: border-box;
}

table {
    border-collapse: collapse;
    width: 85%;
    margin-left: auto;
    margin-right: auto;
    border-spacing: 0;
    padding: 0;
    }

th, td {
    text-align: left;
    line-height: 30px;
    font-size: 20px;
    padding: 5px 5px 5px 5px;
    }

td a {
    text-decoration: none;
    text-align: left;
    color: black;
    display:block;
    line-height: 30px;
    }

tr:nth-child(even) {background-color: #f2f2f2;}

ul.nav {
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
    }

ul {
    list-style-type: none;
    }

li.nav {
    float: left;
    border-right: 1px solid #bbb;
    }

li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
    }

li a:hover {
    background-color: #111;
    }

li.nav:last-child {
    border-right: none;
    border-left: 1px solid #bbb;
    }

.flex-container {
    display: flex;
    flex-flow: row wrap;
    justify-content: space-evenly;
    }

@media only screen
and (device-width : 414px)
and (device-height : 896px)
and (-webkit-device-pixel-ratio : 2) {
    .flex-container {
        flex-direction: column;
        }
    }

.flex-container > div {
    margin: 5px;
    }

img {
    border-radius: 10px;
    width: 275px;
    height: 275px;
    margin: 5px;
    }

.cover_link {
    text-decoration: none;
    }

#cover {
    width: 450px;
    height: 450px;
    }