html, body {
    height: 100%;
    margin: 0;
    overflow: hidden;
  background-color: #111;
  color: #fff;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
h1, h2 {
  text-align: center;
  color: #c33;
}
.container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin-top: 50px;
}
.dropdown {
  position: relative;
  display: inline-block;
  margin: 0 10px;
}
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #333;
  min-width: 160px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
  z-index: 1;
}
.dropdown:hover .dropdown-content {
  display: block;
}
.dropdown-content a {
  color: white;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
  text-align: center;
}
.dropdown-content a:hover {
  background-color: #c33;
}
button {
  margin: 20px;
  padding: 10px 20px;
  border: none;
  background-color: #c33;
  color: white;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.3s ease-in-out;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}
button:hover {
  background-color: #f00;
  transform: translateY(-2px);
  box-shadow: 0px 10px 20px 0px rgba(0,0,0,0.4);
}
footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 30px;
  line-height: 30px;
  background-color: #333;
  text-align: center;
  padding: 10px;
  color: white;
  font-size: 14px;
  position: absolute;
  bottom: 0;
}