.quotes{
    text-align:center;
    margin-left:500px;
    margin-top:170px;
    background-color:gray;
    border-radius:7px;
    width:450px;
    height:250px;
    color:white;
    font-family:Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;}
    
    .bt1{background-color:black;
    color:white;
border:none;
border-radius:10px;
width:70px;
height:50px;}

.credits{font-size:10px;
font-family:Verdana, Geneva, Tahoma, sans-serif;
text-align:center;}