.wrap { 
    max-width: 720px; 
    margin: 50px auto; 
    padding: 30px 40px; 
    text-align: center; 
    box-shadow: 0 4px 25px -4px #9da5ab; 
}
article { 
    padding: 40px; 
    line-height: 150%; 
    text-align: left; 
}

nav .item {
    text-decoration: none;
}
nav .active {
    border-bottom: 1px solid;
}