body{
    margin: 0;
    font-family: Georgia;
    text-align: center;
    background-color: lightsteelblue;
}
form{padding-top: 20px;}
main{
    overflow: auto;
    padding: 30px;
    height: 400px;
}
footer{
    
    background-color: Orange;
    padding: 10px;
}
img{width: 80%;}
table{
    width: 70%;
    margin: auto;
    border: dotted 1px maroon;
}
tr:hover{
    background-color: steelblue;
    color: white;
}