body {
  margin: 0;
  font-family: Arial;
  color: white;

  /* animated gradient */
  background: linear-gradient(120deg, #87ceeb, #ffffff, #001f3f);
  background-size: 300% 300%;
  animation: bg 8s infinite;
}

/* background animation */
@keyframes bg {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.container {
  max-width: 400px;
  margin: 80px auto;
  text-align: center;
}

/* LIST STYLE */
ul {
  list-style: none;
  padding: 0;
}

li {
  padding: 12px;
  margin: 10px 0;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  cursor: pointer;
  transition: 0.3s;
}

li:hover {
  background: white;
  color: #001f3f;
}

/* EXAMS */
#examList p {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  margin: 10px 0;
  border-radius: 10px;
  color: white;
}

/* HIDDEN CLASS */
.hidden {
  display: none;
}