.flex-column {
  flex-direction: column;
  justify-content: center;
  margin-top: 10px;
}
img {
  max-width: 1000px;
  justify-content: center;
}
.center {        
  display:block;
  margin-left:auto;
  margin-right:auto;
}

h1 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: xx-large;
  margin-bottom: 20px;
}

p {
  justify-content: center;
  text-align: center;
  margin-inline: 10%;
}

#text {
  justify-content: center;
  margin-inline: 10%;
}

table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 60%;
  }
  
  td, th {
    border: 1px solid #dddddd;
    text-align: left;
    padding: 8px;
  }
  
  tr:nth-child(even) {
    background-color: #dddddd;
  }

  body div {
    display: flex;
    justify-content: center;
  }