body {
    background-color: #eee;
}
#panel {
    background-color: #fff;
    position: relative;
    top: 100px;
    border: 1px #eee solid;
    padding: 25px;
    max-width: 350px;
    margin: auto;
    color: #494747;
    font-family: Arial, Helvetica, sans-serif
}

#panel img{
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 230px;
}