* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: Arial, sans-serif;
  font-size: 24px;
  color: #333;
}
p {
  line-height: 1.4em;
  text-align: center;
}
.main-content {
        text-align: center;
        padding: 1em;
        position: absolute;
        top: 50%;
        left: 50%;
        margin-right: -50%;
        transform: translate(-50%, -50%)
}