body{ 
 background-color:#187a79;
}
h1{ 
    color:#dbffbf;
}


body{ background-color:#187a79;
}
h2{ color:#dbffbf;
}



.container {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.box {
  /* PLAY WITH THE FLEX-BASIS TO SET THE SIZE OF THE BOXES - DON'T GO OVER 45% */
  flex-basis: 25%;
  margin: .5em;
  border: 3px solid brown;
  border-radius: 3px;
  padding: 1em;
}

/* SETTING THE IMAGE WIDTH HERE INSTEAD OF IN HTML. REMOVE WIDTH="XXX%" FROM THE HTML IMAGE TAGS */
.box img {
  max-width: 50%;
  display: block;
  margin: auto;
}


/* FORMATTING THE CITATIONS - DON'T COPY THIS IF YOU DON'T HAVE A "citation" CLASS */
.citation {
  text-align: center;
}
  a { color: black; }


nav {
      background-color: #333;
    }

    nav ul {
      list-style: none;
      margin: 0;
      padding: 0;
      display: flex;
    }

    nav ul li {
      margin: 0;
    }

    nav ul li a {
      display: block;
      padding: 14px 20px;
      color: white;
      text-decoration: none;
    }

    nav ul li a:hover {
      background-color: #575757;
    }