* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: slategray;
  color: white;
  font-family: Verdana, Geneva, Tahoma, sans-serif;
}

header {
  background-color: rgb(8, 184, 126);
  height: 110px;
  text-align: center;
  font-size: 22px;
}

header a {
  color: rgb(0, 251, 255);
  text-decoration: none;
}

header a:hover {
  color: rgb(8, 52, 117);
}

nav ul li {
  display: inline;
}

button {
  width: 200px;
  height: 30px;
  display: inline;
  margin: 10px;
  margin-top: 20px;
  padding: 30px 10px;
  font-weight: bold;
  text-align: center;
  border: 5px solid;
  border-radius: 1px;
  cursor: pointer;
  margin-bottom: 10px;
  border-color: rgb(0, 0, 0);
  background-color: rgb(80, 153, 255);
  border-bottom-color: rgb(57, 225, 169);
  border-right-color: rgb(57, 225, 169);
}

button:hover {
  background-color: rgb(45, 107, 194);
  border-bottom-color: rgb(30, 141, 104);
  border-right-color: rgb(30, 141, 104);
}

a button {
  color: rgb(0, 251, 255);
}

#banner {
  background-image: url(../img/banner.jpg);
  width: 100%;
  height: 30vh;
  background-size: cover;
  background-position: center;
}

a button:hover {
  color: rgb(8, 52, 117);
}

main a {
  color: rgb(0, 0, 0);
  text-decoration: none;
}

main a:hover {
  color: rgb(108, 108, 108);
}

main article {
  padding: 20px;
  margin: 3px;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}
section article {
  padding: 20px;
  margin: 3px;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

main article img {
  width: 100%;
  height: auto;
}

section article img {
  width: 100%;
  height: auto;
}

main article figure {
  border: 21px solid whitesmoke;
  border-bottom: 30px solid whitesmoke;
  background-color: whitesmoke;
}
section article figure {
  border: 21px solid whitesmoke;
  border-bottom: 60px solid whitesmoke;
  background-color: whitesmoke;
}

section article figcaption {
  background-color: whitesmoke;
  text-align: center;
  color: black;
}