body {
  margin: 20px;
  padding: 0;
  background-color: rgba(204, 204, 204, 1);
}

h1, h2, h3, a {
  font-family: "Helvetica Neue Medium", "Helvetica Regular", sans-serif;
  
}

h4, p, ul, ol, dl {
  font-family: "Helvetica Neue Light", "Helvetica Light", sans-serif;
  
}

h1 {
  font-size: 1.4em;
  font-weight: normal;
}

h2, h3, h4, p.lead {
  font-size: 1.2em;
  font-weight: normal;
}

h1, h2, h3, h4 {
  margin: 0;
}

p.lead, h4 {
  margin-top: 0.7em;
  margin-bottom: 0;
}

p.lead:last-child {
  margin-bottom: 0.7em;
}

p, ul, ol, dl {
  font-size: 0.9em;
  line-height: 1.3em;
}

ul {
  list-style: circle;
}

ul, ol {
  margin-left: 0;
  padding-left: 0;
  list-style-position: inside;
}

dt {
  margin-top: 1em;
}

dd {
  margin: 0;
}

.book {
  font-style: italic;
}

a:link, a:visited {
  text-decoration: none;
  color: white;
}

a:hover, a:focus {
  color: black;
}

a:active {
  opacity: 0.3;
}

a.title:link, a.title:visited {
  color: black;
}

header {
 /* position: fixed;*/
  top: 20px;
  z-index: 10; 
}

main {
  margin-top: 30px;
}

.column {
  padding-bottom: 15px;
}

.column {
  border-top: 1px solid white;
  padding-top: 9px;
}

.column_full {
  border-top: 1px solid white;
  padding-top: 9px;
}

footer {
  border-top: 1px solid white;
  margin-top: 20px;
  margin-bottom: 30px;
}

  
iframe {
    width:98%
  }


@media (max-width: 480px), (max-device-width: 720px) {
  body {
    -webkit-text-size-adjust: none;
  }

  header {
    position: static;
  }

  main {
    margin-top: 50px;
  }

  footer {
    margin: 0;
  }
  
}

@media (min-width: 800px) {
  main {
    display: flex;
    flex-wrap: wrap;
  }

  .column {
    width: 48%;
    margin-right: 2%;
    padding-bottom: 0;
  }

  .column:last-child {
    margin-right: 0;
  }

  .column_full {
    width: 98%;
    margin-right: 2%;
    padding-bottom: 0;
  }
  
  iframe {
    width:800px
  }


  footer {
    /*position: fixed; */
    width: 98%;
    margin: 0;
    bottom: 20px;
    z-index: 10;
  }
}