@media (min-width: 768px) {
  .wrapper {
    /* grid-template-columns: 1fr 3fr 1fr;  */
    grid-template-areas:
      "header header   header"
      "nav      nav     nav"
      "content content content "
      "footer    footer  footer";
  }

  .whoamI {
    font-size: 1rem;
    line-height: 1rem;
    max-width: 350px;
  }

  .officeHours {
    font-size: 1rem;
    line-height: 1rem;
    min-width: 200px;
    max-width: 350px;
  }

  .main-nav ul {
    float: left;
    width: auto;
    display:flex;
  }

  .main-nav li {
    padding-left: 10px;
    padding-right: 10px;
    font-size: 0.9rem;
    padding-right: 2rem;
  }

 figure {
-float: center;
width: 40%;
-text-align: center;
-font-style: italic;
-font-size: smaller;
-text-indent: 0;
-border: thin silver solid;
-margin: 0.5em;
-padding: 0.5em;
-float:right;
} 

  .myPicture img {
    width: 100%;
    max-width: 250px;
    height: auto;
  }

  figcaption {
    font-size: min(2vw, 100%);
    float: center;
  }

  nav ul {
    display: flex;
    flex-direction: row;
    justify-content: left;
    color: black;
    padding: 5px;
  }

  nav button {
    display: flex;
  }

button #classBtn{
  display:none;
}

  /* .semestersNav ul.open {
  display: block;
} */

  #classNav {
    display: flex;
  }

  nav li {
    -float: left;
    -width: 35%;
  }

  .semestersNav ul {
    display: flex;
    flex-direction: row;
    justify-content: left;
    color: black;
    padding: 5px;
  }

  .course-links ul {
    display: flex;
    flex-direction: row;
    justify-content: left;
    color: black;
    padding: 5px;
  }

  .semestersNav li {
    float: left;
    width: 35%;
    padding-left: 10px;
    padding-right: 2rem;
    font-size: 0.9rem;
  }

  .semestersNav ul {
    display: flex;
    float: left;
    width: auto;
  }

  .lect-sched {
    font-size: 1rem;
  }

  .lect-sched dt {
    font-size: 1.1rem;
  }

  .lect-sched dd {
    font-size: 1.1rem;
  }

  .wrapper {
    display: grid;
    max-width: 1500px;
    /* gap: 20px; */
    grid-template-areas:
      "header"
      "nav"
      "content"
      /* "sidebar"
      "ad" */
      "footer";
  }

  .toggle-button {
    display: flex;
  }

  button#hamburgerBtn {
    display: none;
  }

  button#semestersBtn {
    display: none;
  }

  .navbar-links {
    display: none;
    width: 100%;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .navbar-links ul {
    width: 100%;
    flex-direction: column;
  }

  .navbar-links li {
    text-align: center;
  }

  .navbar-links li a {
    padding: 0.5rem 1rem;
  }

  .navbar-links.active {
    display: flex;
  }

  .topnav a {
    display: block;
  }


button#classBtn{
  display:none;
}





.semestersNav {
 
  flex-direction: row;

}



}