nav > ul > li{
    display: inline;
    text-decoration: none;
    margin-right: 15px;
}
nav li >a{
    text-decoration: none;

}
footer{
    margin-top:30px;
    text-align: center;
}
#sec{
    color: black;
    background-color: cadetblue;
}
#sec1{
    font-size: larger;
    font-family: Arial, Helvetica, sans-serif;
}