style.css

.menu {
	display: grid;
	grid-template-columns: auto auto auto auto auto;

	border: black solid;
	background-color: #333;
    position: sticky;
    position: -webkit-sticky;
    top: 0;
    width: 100%;
    }
.menu a {
    float: left;
    color: #f2f2f2;
    text-align: center;
    font-size: 17px;
    text-decoration: none;
    }
.menu a:hover {
    background-color: #ddd;
    color: black;
    } 
.menu a.active {
  background-color: green;
  color: white;
    }        

.item{
	border: black solid;
     }
.header {
	background-image: url('bot.jpg');
	background-size: 100% 100% ;
    background-repeat: no-repeat;
    font-size: 70px;
	
	width : 100% ;
	height: 200px;
	border : black solid;
	display: grid ;
	grid-template-columns: 180px 400px
    }  
body {
	background-color: gray;
	  margin : auto;
     }