:root {

--hdrname: #eeee00 ;
--hdrshadow: #000055 ;
--hdrbkgd: #000000 ;
--hdrtxtbkgd: #c977dd ;
--sitebkgd: #ffffcc ; 
--sitetext: #800080;
--menubkgd: #4d004d;
--menucurhovertext: #ffff00;
--menucurhoverbkgd: #800080;
--menucurpgtext: #800080;
--menuhovertext: #ffff00;
--menuhoverbkgd: #cc00cc;
--menupipes: #000000; 
--menutext: #ffff00;
<!----menuhoverback: #0073e6;-->

}


body {background-color: var(--sitebkgd); color:var(--menucurpgback); font-family: "Times New Roman", Times, serif; font-size:100%; margin-left: 4vw; margin-right: 4vw; margin-top: 2vw;
  text-align: justify; text-justify: auto; }
<!--div  {background-color: var(--menubkgd); color:var(--sitetext); font-family: Arial, Helvetica, sans-serif; font-size:1em;}-->
h1   {background-color: var(--sitebkgd); color:var(--sitetext); font-family: "Times New Roman", Times, serif; font-size:2em;}
p    {background-color: var(--sitebkgd); color:var(--sitetext); font-family: Arial, Helvetica, sans-serif; font-size:1em;}
<!--ul   {background-color: var(--sitebkgd); color:var(--sitetext); font-family: Arial, Helvetica, sans-serif; font-size:1em;}-->

ul.n {
  font-size:1em;
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: var(--menubkgd) ;
}

li.n {
  font-size:1em; 
  float: left;
  border-right:1px solid var(--menupipes) ;
}

li.n:last-child {
  border-right: none;
}

li.n a {
  display: block;
  color: var(--menutext);
  text-align: center;
  padding: 1em 1em;
  text-decoration: none;
}

li.n a:hover:not(.active) {
  color: var(--menuhovertext);
  background-color: var(--menuhoverbkgd);
}

.active {
  color: var(--menucurhovertext);
  background-color: var(--menucurhoverbkgd);
}

td {
  padding: 0.1em;
  text-align: center;
}

h2 {
  text-shadow: 0.1em 0.05em var(--hdrshadow);
}

.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #000000;
  background-color: rgba(0,0,0, 0.9); /* Black w/opacity */
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 25%;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 36px;
  color: #808080;
  display: block;
  transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
  color: #ffffff;
}

.overlay .closebtn {
  position: absolute;
  top: 20px;
  right: 45px;
  font-size: 60px;
}

@media screen and (max-height: 450px) {
  .overlay a {font-size: 20px}
  .overlay .closebtn {
  font-size: 40px;
  top: 15px;
  right: 35px;
  }
}