html {
  min-height: 100%;
  background: linear-gradient(135deg, #ff4500, #ffd700);
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  margin: 0 auto;
  font-family: Arial, sans-serif;
  text-align: center;
  max-width: 800px;
  padding: 20px;
  padding-bottom: 60px; /* make space for fixed footer */
}


 #titleTop {
        color: orange;
        font-size: 4.5rem;
        margin: 20px 0;
        text-shadow: 4px 4px 10px rgba(0, 0, 0, 0.5);
        width: 100%;
      }
.io {
  color: gold;
}
p {
        margin: 20px auto;
        font-size: 1.5rem;
        color: #fff8b0;
        line-height: 1.8;
      }
 a {
        color: #ffd700;
        text-decoration: none;
        font-weight: bold;
      }
.regbutton {
  font-size: 1.5rem;
  padding: 1.5%;
  margin: 1%;
  width: calc(50% - 20px);
  background: linear-gradient(to bottom, #ffd700, #ffa500);
  border: 2px solid orange;
  border-radius: 8px;
  cursor: pointer;
  transition: 0.3s;
  color: black;
}
.regbutton:hover {
  background: linear-gradient(to bottom, #ffa500, #ff8c00);
  transform: scale(1.05);
}
 a:hover {
        text-decoration: underline;
      }