.kaikki {
max-width:800px; 
background-color:#e303fc;
margin-left:auto;
margin-right:auto;
}

.header {
background-color:#fcfc03;
padding:50px 20px;
}

.nav {
padding:20px;
background-color:#fcc7f3;
text-align:center;
}

.footer {
background-color:#200e87;
color:#ccfdff;
}