html {
    overflow-y: scroll;
}

p, h1 {
    text-align: center;
}

table {
  font-family: arial, sans-serif;
  width: 100%;
  border: 1px solid black;
}

td, th {
  text-align: left;
  padding: 8px;
  border: 1px solid black;
}

tr:nth-child(even) {
  background-color: #dddddd;
}

main-body {
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center;
}