#con-top {
    width: 100%;
    height: 120px;
    background-color: dodgerblue;
}

#top-left {
    width: 800px;
    height: 110px;
    position: absolute;
    top: 10px;
    left: 20px;
    text-align: center;
    overflow: hidden;
    background-color: dodgerblue;
}

#top-back {
    width: 300px;
    height: 110px;
    text-align: center;
    position: absolute;
    top: 10px;
    right: 60px;
    background-color: dodgerblue;
}

#top-back a {
    color: white;
    font-size: 30px;
    line-height: 110px;
    text-decoration: none;
    background-color: dodgerblue;
    transition: 0.5s;
}

#top-back a:hover {
    color: black;
    transition: 0.5s;
    border-bottom: 4px solid orange;
}

#top-left p {
    font-size: 40px;
    font-family: 'Times New Roman';
    font-style: italic;
    background-color: dodgerblue;
}

#con-center {
    width: 100%;
    height: 440px;
    text-align: center;
    background: url(../image/letter.jpg);
    background-size: cover;
    overflow: hidden;
}

#con-center p {
    background-color: rgba(0, 0, 0, 0);
}

form {
    display: block;
    margin-top: 0em;
    background-color: rgba(0, 0, 0, 0);
}

#con-center input[type="text"] {
    outline: none;
    width: 400px;
    padding: 8px;
    font-size: 15px;
    font-weight: 400;
    border: 1px solid #999;
    background-color: white;
}

#con-center textarea {
    width: 400px;
    height: 10em;
    font-size: 15px;
    font-weight: 400;
    padding: 10px;
    border: 1px solid #999;
    outline: none;
    resize: none;
    background-color: white;
}

#con-center input[type="submit"] {
    padding: 0.7em 2em;
    font-size: 15px;
    font-weight: 500;
    border: none;
    outline: none;
    background: #3E8FBA;
    color: white;
}

#con-center input[type="submit"]:hover {
    background: orange;
    transition: 0.8s;
}