.site-header {
    border-bottom: 1px solid #ccc;
    padding: 0.5em 1em;
}

.site-header::after {
    content: "";
    display: table;
    clear: both;
}

.site-identity {
    float: left;
}

.site-identity h1 {
    font-size: 1.5em;
    margin: 0.7em 0 0.3em 0;
    display: inline-block;
}

.site-identity img {
    max-width: 55px;
    float: left;
    margin: 0 10px 0 0;
}

thead tr th {
    text-align: center;
}
#my-table thead tr th {
    background: #031a4e;
    color: white;
}
#my-recommend-table thead tr th {
    background: #8e471d;
    color: white;
}

th a.sort-by {
    padding-right: 18px;
    position: relative;
}
a.sort-by:before,
a.sort-by:after {
    border: 4px solid transparent;
    display: block;
    height: 0;
    right: 5px;
    top: 50%;
    position: absolute;
    width: 0;
    content: "";
}
a.sort-by:before {
    border-bottom-color: #666;
    margin-top: -9px;
}
a.sort-by:after {
    border-top-color: #666;
    margin-top: 1px;
}
a.sort-by.up:before {
    border-bottom-color: #fff;
}
a.sort-by.down:after {
    border-top-color: #fff;
}