header, nav, section, footer {
    background-color: rgb(231, 161, 161);
    width: 400px;
    padding:10px 10px 10px 30px;
    margin: 10px;
    border: solid 2px rgb(247, 106, 106) ;
    }
    body{
        margin: 0;
    }
    strong {
        background-color: salmon;
        border: solid 1px palevioletred;
        line-height:2em;
    }
.prems{
    color: rgb(162, 250, 221);
}

nav ul {
margin: 0;
padding: 0;
list-style-type: none;
background-color: rgb(173, 126, 216);
}
nav a {
   padding: 1em;
   display: block;
   text-align: center;
   text-decoration: none;

}

nav ul {
    display: flex;
    flex-direction: row;
    justify-content: center;
}

nav a:hover{
    background-color: cornflowerblue;
}