*{box-sizing: border-box;}
body {
    margin: 0px;
    padding: 10px;
    background-color: #ffc7c7;
}
nav {
    margin: 5px 0px;
    padding: 10px;
    background-color: #ffffcc;
    border: solid 1px black;
}
nav a {
    display: inline;
    border: solid black 2px;
    padding: 2px 5px;
    margin-top: 15px;
}
a:hover {
    color: blue;
}
header {
    text-align: center;
    border: solid black 2px;
    background- color: #ffffcc;
}
footer {
    text-align: center;
    width: 100%;
    display: inline-block;
    border: solid black 2px;
    margin: 0px;
}


}