body{
    color: white;
background: black;
font-family: Arial, Helvetica, sans-serif;
}

ul {
    display: flex;
  justify-content: space-between;
list-style:none ;
align-items:center ;
padding: 16px;
}

a{
    color: white;text-decoration: none;
}

header img{
width: 300px;
height: 300px;
border-radius: 50%;
border: 5px solid green;
}

.center{
text-align: center;
}

h1{
    color: green;
}

footer img{
width:40px ;
height:40px ;

}

footer{
display: flex;
justify-content: center;
}

footer a {
margin: 20px;
text-align: center;
}

footer p{
    margin-top: 2px;
}

.container{
    padding: 0px 50px;
}

nav a:hover{
    color: green;
}