* {
    box-sizing: border-box;
  }
  
  html {
    font-family: "Lato", sans-serif;
    font-weight: 400;
  }
  
  body {
    margin: 0;
  }
  
  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: "Montserrat", sans-serif;
  }
  
  header {
    background: #22a6b3;
    width: 100vw;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    z-index: 10;
  }
  header ul {
    display: -webkit-box;
    display: flex;
    margin: 0 0 0 400px;
    padding: 0;
  }
  header li {
    list-style: none;
  }
  header a {
    height: 60px;
    display: inline-block;
    line-height: 60px;
    padding: 0 20px;
    text-decoration: none;
    color: #fff;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  header a.current {
    background-color: #7ed6df;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  header a:hover {
    background-color: #7ed6df;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  
  body {
    display: -webkit-box;
    display: flex;
    flex-wrap: wrap;
    position: relative;
    background: #efefef;
  }
  
  aside {
    width: 400px;
    position: fixed;
    top: 60px;
    left: 0;
    bottom: 0;
  }
  aside ul {
    margin: 0;
    padding: 0;
    position: absolute;
    left: 0;
    width: 100%;
    background: #22a6b3;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
    bottom: 0;
    top: 0;
  }
  aside ul.hidden {
    left: -400px;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  aside ul ul {
    position: static;
  }
  aside ul ul li a {
    padding: 0 20px;
  }
  aside li {
    list-style: none;
  }
  aside a {
    text-decoration: none;
    color: #fff;
    height: 40px;
    line-height: 40px;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
    display: block;
    padding: 0 10px;
  }
  aside a.current {
    background-color: #7ed6df;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  aside a:hover {
    background-color: #7ed6df;
    -webkit-transition: all 0.3s;
    transition: all 0.3s;
  }
  
  main {
    width: calc(100vw - 400px);
    margin-left: 400px;
    margin-top: 60px;
  }
  main > section {
    padding: 30px;
    max-width: 1000px;
    margin: auto;
  }
  
  article {
    margin: 30px 0;
    background: #fff;
    padding: 30px;
  }
  article img {
    display: block;
    width: 100%;
    max-width: 100%;
    border: 1px solid #000;
  }
  article article {
    padding: 0;
    position: relative;
    border-top: 1px solid #efefef;
  }
  article > h2 {
    margin-top: 0;
  }
  
  section.hidden {
    display: none;
  }
  
  .search {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    border: none;
    padding: 10px;
    max-width: 300px;
    width: 100%;
  }
  
  .search-results {
    position: fixed;
    top: 60px;
    left: 400px;
    right: 0;
    height: 100vh;
  }
  
  .close {
    width: 30px;
    height: 30px;
    position: relative;
    border: none;
    background: transparent;
    padding: 0;
    -webkit-transform: rotate(45deg);
            transform: rotate(45deg);
    position: fixed;
    top: 80px;
    right: 20px;
  }
  .close span:first-of-type {
    display: block;
    width: 2px;
    height: 30px;
    background: #000;
    position: absolute;
    top: 0;
    left: 50%;
    -webkit-transform: translate(-50%, 0);
            transform: translate(-50%, 0);
  }
  .close span:last-of-type {
    display: block;
    width: 30px;
    height: 2px;
    background: #000;
    position: absolute;
    top: 50%;
    left: 0;
    -webkit-transform: translate(0, -50%);
            transform: translate(0, -50%);
  }
  
  table {
    border-collapse: collapse;
  }
  table tr:nth-of-type(odd) {
    background-color: #efefef;
  }
  table td {
    height: 30px;
    padding-right: 20px;
  }