body {
    background-color: white;
}

h1{
    text-align: center;
.navbar ul{
list-style-type: none;
background-color: grey;
padding: 0px;
margin: 0px;
overflow: hidden;
}

.navbar a{
color: white;
text-decoration: none;
display: block;
text-align: center;
}

.navbar a:hover{
background-color: black;

}

.navbar li{
float: left;
}	
.container {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
}