header {
    width: 300px;
    border: 0px dotted black;
    padding: 1px;
    margin: 0px;
    background-color: rgb(183, 221, 221);
}
nav{
    width: 300px;
    border: 1px  black;
    padding: 0px;
    margin: 20px;
    background-color: rgb(81, 134, 158);
}
article{
    width: 300px;
    border: 1px black;
    padding: 0px;
    margin: 20px;
    
}
footer{
    width: 300px;
    border: 1px black;
    padding: 20px;
    margin: 0px;
}
nav ul{
    list-style-type: none;

}
p.align-center {
    text-align: center;
    }


body {
        line-height: 1.5;
    }

h1 {
    text-align: center;
}
h2 {
    text-align:center
}