.topnav {
   background-color: #333;
   overflow: hidden;
}

/* Style the links inside the navigation bar */
.topnav a {
   float: left;
   display: block;
   color: #f2f2f2;
   text-align: center;
   padding: 14px 16px;
   text-decoration: none;
   font-size: 17px;
}

/* Change the color of links on hover */
.topnav a:hover {
   background-color: #ddd;
   color: black;
}

/* Add an active class to highlight the current page */
.topnav a.active {
   background-color: #04AA6D;
   color: white;
}

/* Hide the link that should open and close the topnav on small screens */
.topnav .icon {
   display: none;
}

/*
table
*/
#customers {
   font-family: Arial, Helvetica, sans-serif;
   border-collapse: collapse;
   width: 100%;
}

#customers td,
#customers th {
   border: 1px solid #ddd;
   padding: 8px;
}

#customers tr:nth-child(even) {
   background-color: #f2f2f2;
}

#customers tr:hover {
   background-color: #ddd;
}

#customers th {
   padding-top: 12px;
   padding-bottom: 12px;
   text-align: left;
   background-color: #04AA6D;
   color: white;
}