nav svg {
  top: 13px;
  position: absolute;
  right: 20px;
  cursor: pointer;
}
nav {
  position: sticky;
  top: 0;
  background-color: rgba(127,127,127);
  transition: opacity 300ms;
  opacity: 0.2;
}
nav:hover {
  transition: opacity 300ms;
  opacity: 1;
}
@media(min-width:900px){
  nav {margin: 0px 50px;}
}

nav ul {
  margin-top: 0;
  padding: 10px 20px;
}
nav ul li {
  list-style: none;
  display: inline-block;
  padding-right: 20px;
}
nav ul li a {text-decoration: none;}
nav ul li a:link {color: currentColor;}
nav ul li a:visited {color: currentColor;}
nav ul li a:hover {
  text-decoration: underline;
  text-decoration-color: #c00000;
}
#level {
  font-family: arial, sans-serif;
  font-size: 13.125px;
}