body {
  font-family: 'Arial';
  background-image: url(/photos/Wood.jpg);
  margin: 0px;
  padding: 20px;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.hidden{
  display: none;
}

.paper{
  background-color: #E8E9E1; /* www.colorxs.com/color/paper-doll-csp-485 */
  padding: 20px;
  margin: 0 auto;
  width: 60vw;
  max-width: 700px;
  min-width: 500px;
}

h1 {
  font-family: 'Courier New', monospace; 
  text-transform: lowercase;
}
h2 {
  font-family: 'Courier New', monospace; 
  text-transform: lowercase;
}
mark {
  /*background: RGBA(0, 0, 255, 0.5) !important; */
  background: #FFDE64 !important;
  /*color:white;*/
}

nav {
  width: 90%;
  height: 50px;
}

nav > ul {
  display: flex;
  justify-content: space-evenly;
  flex-wrap: wrap;
  align-items: center;
  padding-inline-start: 0;
  margin-block: 0;
  height: 100%;
}

nav > ul > li {
  margin: 0 0.2rem;
  padding: 0.2rem;
  display: block;
}