body {
    text-align: center;
    height: 100%;
    background: #eeeeee;
    margin-top: 120px;
}

label {
    font-size: 25px;
}

#posi {
    position: relative;
}

.uploadfile {
    margin: auto;
    margin-top: 20px;
    width: 900px;
    background: #FFF;
    border-radius: 1px;
    padding: 50px;
    box-sizing: border-box;
    overflow: auto;
    text-align: center;
}