/* CSS Document */
body{
background-color: lightblue;
}

header{
color: white ;
background-color: black;
}

header h1 header h2   {
text-align: center;
font-family: sans- serif ;
}

table ,th,td {
border: 1px solid black;
}

header h1, header h2 {
text-align: center;
font-family: sans-serif;
margin: 0px;
padding: 5px 15px;
}

nav a {
display: inline-block;
color: white;
background-color: black;
font-family:sans-serif;
text-decoration: none;
padding: 5px 15px; 
margin: 2px;
}

table, th,td{
color: black;
border: 1px solid black;
border-collapse:collapse;
}

td,th{
width: 7%;
height: 35px;
text-align:center ;
}

th,tr:nth-child(even){
color:white;
background-color:#314248;
}

th{
    font-size: large;
}