.thumbnail{
    text-align: center;
}
.thumbnail > img{
    width:40%;
}
.description > p{
    font-size: 0.8em;
}
.secondThumbnail{
    margin-top: 30px;
}
.miniThumbnail{
    text-align: center;
} 
.miniThumbnail > img{
    width: 95%;
}
.last{
    margin-bottom: 50px;
}
@media screen and (max-width: 480px){
    .description{
        margin-top:20px;
    }
    .description > p{
        font-size: 1.0em;
    }
    .miniThumbnail > img{
        margin-bottom: 20px;
    }
}