header{
    background-color: black;
    color: white;
    padding: 20px;
}

footer{
    background-color: black;
    color: white;
    padding: 20px;
}


body{
    background-color: aliceblue;
    color: black;
    font-family: 'Times New Roman', Times, serif;
    text-align: center;
}


hr{
    background-color: black;
    width: 500px;
    height: 10px;
}





.b,.c,.d,.e,.f,.g,.h,.i,.j,.k,.l,.m,.n,.o,.p,.q{
    display: inline-block;
    margin: 20px;
    padding: 20px;
    border-radius: 10px;
    border: 1px solid black;
    width: 300px;
}



.b img,.c img,.d img,.e img,.f img,.g img,.h img,.i img,.j img,.k img,.l img,.m img,.n img,.o img,.p img,.q img{
    height: 250;
    width: 250;
}