body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
/*  display: flex; */
  justify-content: center;
  align-items: center;
  height: 100vh; 
}

header {
  background-color: #243c5a; /* Dark Blue Color Code */
  color: #fff;
  text-align: center;
  padding: 20px;
}

main {
  padding: 20px;
  background-color: #7fb4f0; /* Light Blue Color Code */
}


.slider {
  position: relative;
  text-align: center;
}

button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.3);
  border: none;
  color: white;
  font-size: 24px;
  cursor: pointer;
  padding: 10px;
}

.prev {
  left: 10px;
}

.next {
  right: 10px;
}

img {
  max-width: 80%;
  height: auto;
  display: block;
  margin: 0 auto;
}

footer {
  background-color: #243c5a; /* Dark Blue Color Code */
  color: #fff;
  text-align: center;
  padding: 10px;
  position: fixed;
  bottom: 0;
  width: 100%;
}