body {
  background-color: #303030;
  font-family: sans-serif;
}

header {
  position: fixed;
  text-align: center;
  top: 0px;
  left: 0px;
  padding-bottom: 1rem;

  width: 100%;

  background-color: #303030;

  color: white;
  z-index: 2;
  box-shadow: 5px 15px 30px rgba(0, 0, 0, .6);
}
header a {
  background-color: white;
  padding: 4px;
  float: right;
}
header .sections {
  display: flex;
  justify-content: space-around;
}
nav {
  background-color: white;
  width: 80%;
  margin: auto;
}
h2 {
  border-bottom: 6px solid #eee;
}
h2:before {
  content: '';
  display: block;
  position: relative;
  width: 0;
  height: 200px;
  margin-top: -200px;
}

table {
  margin: auto;
  border: 2px solid #808080;
}
th {
  background-color: #303030;
  color: white;
  min-width: 5vw;
}
tr:nth-child(even) {
  background-color: #eee;
}
.plot {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}
.plot.pair div {
  flex: 1;
}
#main {
  background-color: white;
  width: 80%;
  margin: 200px auto;
  min-height: 40vh;
}
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 100%;
  height: 80vh;
}
form {
  margin: auto;
  min-width: 350px;
  border: 2px solid #808080;
  padding: 10px;
}
form input, form div {
  width: 100%;
  margin: auto;
}

@media print {
  body {
    background: white;
  }
  header {
    display: none;
  }
  table {
    border-collapse: collapse;
  }
  th, td {
    border: 2pt solid;
  }
  td {
    font-size: 10pt;
  }
  th {
    color: black;
    background: transparent;
  }
  .plot {
    page-break-inside: avoid;
  }
  h2 {
    page-break-before: always;
    border-bottom-color: black;
  }
}