html:before
{
background-color:#800080;
}
article {
border-radius:2rem;
}
.content article
{
 border-top: solid 0.3rem #C0C0C0;
}
.content article
{
 border-bottom: solid 0.3rem #000000;
}

nav.sub > .sitemap
{
background: linear-gradient(120deg,#A6ACAF,#F1C40F,#935116,#186A3B,#117864);
}


.content article
{
background: linear-gradient(120deg,#A6ACAF,#F1C40F,#935116,#186A3B,#117864);
}