body {
    text-align: center;
    font-family: Arial, sans-serif;
    background-color: lightblue;
}

h1 {
    color: red;
}

.nav-menu {
    background-color: #333; 
    display: flex;
    justify-content: center;
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.nav-menu a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 20px;
    text-decoration: none;
    font-size: 17px;
    font-weight: bold;
}

.nav-menu a:hover {
    background-color: gray; 
}

p {color: green;
    text-align: center;
    max-width: 800px;
    margin: 10px auto;
}

img {
    display: block;
    margin: 20px auto;
    border: 2px solid #ddd;
    border-radius:8px;
}

table, th, td {
  border: 1px solid white;
  border-radius: 10px;
}
th, td {
  padding-top: 10px;
  padding-bottom: 20px;
  padding-right: 40px;
}
th, td {
  font-size: 32px;
  background-color: lightgray;
}
th, td {
  text-align: center;
}
table, th, td:hover {
    background-color: red; 
}