@charset "UTF-8"; 

body {
  background-color: gray;
}
 
#wrap {
  width: 960px;
  margin: auto;
  background-color: white;
}
 
header   {
  padding: 40px;
  height: 80px;
}
 
nav {
  padding: 8px 40px;
  background-color: rgb(44, 126, 155);
  color: white;
}
 
main{
  padding: 40px;
  height : 400px;
}
 
footer   {
  padding: 40px;
  height: 40px;
  background-color : rgb(44, 126, 155);
  color: white;
}
a {
  color: rgb(12, 188, 242);
}

a:visited {
  color: rgb(19, 234, 166);
}

a:hover {
  color: rgb(232, 13, 122);
}

table tr:nth-of-type(even) {
  background-color: gray;
}
table tr:nth-of-type(odd) {
  background-color: rgb(16, 235, 155);
}