body {    
    background-color: lightblue;
}

h1 {
    text-align: center;
    font-family: Helvetica;
}

div {
  font-family: Arial, Helvetica, sans-serif;
    display: flex;
  align-items: center;
  justify-content: center;
    position: relative;
    text-align: center;
    margin-left: 10px;
    margin-right: 10px;
    margin-bottom: auto;
    margin-top: auto;
    padding: 15px 15px;
    width: 500px;
    height: 250px;
    background-color: violet;
    outline: black dashed 10px;
}

.fix {
    display: flex;
  align-items: center;
  justify-content: center;
}