html {
  font-size: 100%;
}

body{
    line-height:1.6;
    font-size: 1.25rem;
    padding: 0 1rem;
    font-family: Helvetica sans-serif;
}

header {
  border-bottom: 0.1rem solid #000;
}

nav ul li a {
  font-size: 1.5rem;
  font-weight: bold;
  color: black;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
}

footer {
  margin-top: 3rem;
  padding: 1.2rem 0;
  border-top: 0.1rem solid #000;
}

h1,h2,h3 {
    line-height:1.2;
}

dt {
  font-weight: bold;
}

/*
dt {
    font-weight: bold;
    clear: left;
    float: left;
    padding-right: 1em;
}
dd {
    clear: right;
}
*/

table {
    border-collapse: collapse;
    width: 100%;
}
td, th {
    border: 1px solid;
    text-align: left;
    padding: 8px;
}

@media (max-width: 999px) {
  nav ul {
    list-style-type: none;
    padding: 0 0 0 0;
    margin: 0 0 0 0;
    display: flex;
    flex-direction: column;
  }
}

@media (min-width: 1000px) {
  body {
    width: 50rem;
    margin: 0 auto;
    padding: 0;
  }

  nav ul {
    list-style-type: none;
    padding: 0 0 0 0;
    margin: 0 0 0 0;
    display: flex;
    justify-content: space-around;
    flex-direction: row;
  }
}