@media screen and (max-width: 600px) {
  body {
    width: 590px;
  }
  header {
    margin-top: 7px;
    height: 77px;
    background-image: none;
    background-color: white;
    border-top: 1px solid #ccc;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
  }
  h1 {
    margin-top: 24px;
    margin-left: 0;
    font-size: 28px;
    color: black;
  }
  nav {
    width: 100%;
    height: 80px;
    background-color: white;
    color: black;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
  }
  ul {
    /* widttH:  */
    list-style: initial;
  }
  li {
    margin-left: 34px;
    width: 60px;
    margin-right: 50%;
    text-align: left;
    line-height: 20px;
  }
  a {
    text-decoration: underline;
    color: -webkit-link;
  }
  main {
    height: 615px;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
  }
  section {
    width: 100%;
    height: 61.5%;
  }
  aside {
    float: left;
    width: 95%;
    height: 20.5%;
    background-color: white;
  }
  aside img {
    width: 36%;
  }
  aside img:nth-child(1) {
    margin: 0px 5px 5px 0px;
  }
  aside img:nth-child(2) {
    margin: 0px 0px 5px 0px;
  }
  aside img:nth-child(3) {
    margin: 0px 0px 5px 0px;
  }
  footer {
    clear: both;
    background-color: rgb(0, 30, 0);
    color: white;
    width: 100%;
    height: 85px;
    text-align: center;
  }
}