body{
    background-color: aqua;
}
/* couleurs des toutes les links*/
a,
a:visited{
    color: red;
}

/* HEADER */
.site-header{
padding: 2rem 1rem 3rem 1rem;
border-bottom: 1px solid black;
}

.main-navigation li a {
    display: inline-block;
    padding: 0.5em 1em ;
}

.main-navigation li  last-of-type a{
border:1px solid black;

}

/* MAIN */
.site-main {
    padding: 1rem;

}


/* FOOTER */

.site-footer{
background-color: red;
color: white;

}
.site-footer a{
color: aquamarine;
}