.catalog {
    position: fixed;
    line-height: 200%;
}

.catalog a {
    color: #6591b9;
}

.catalog a:hover {
    text-decoration: underline;
}

.catalog>div>div {
    margin-left: 20px;
}

.right {
    float: right;
    margin-bottom: 40px;
    padding-left: 40px;
    width: 1000px;
    border-left: 1px solid #ccc;
}

.title {
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 25px;
    font-family: Consolas, Arial;
    color: #6591b9;
    text-shadow: 2px 1px 3px #c5c1aa;
    font-weight: 700;
}

.sub-title {
    margin-top: 20px;
    margin-bottom: 5px;
    font-family: Arial;
    font-size: 20px;
    color: #50616d;
    text-shadow: 1px 1px 2px #c5c1aa;
}

.description {
    margin-top: 5px;
    margin-bottom: 5px;
    font-family: Arial;
    font-size: 18px;
    color: #50616D;
    /*width: 1000px;*/
    line-height: 150%;
    text-align: justify;
}

.man-img {
    margin: 20px 0 20px 30px;
    width: 900px;
    /* border: 1px solid #ccc; */
}

button {
    width: 160px;
    height: 30px;
    border: 1px solid #3399ff;
    color: #3399ff;
}

.man-gif {
    width: 960px;
    border: 1px solid #3399ff;
}

.man-gif-box {
    display: none;
}

table {
    margin: auto;
    width: 900px;
    border: 1px;
    border-collapse: collapse;
    color: #50616d;
}

td {
    padding: 10px;
    border: 1px solid #ccc;
    line-height: 150%;
    text-align: center;
}

/*tr>td:last-child {
    text-align: left;
}*/

#back-to-top {
    display: none;
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 1;
    cursor: pointer;
}