* {
    font-family: arial;
}

h2 {
   text-align: center; 
}

/* ID > Class > Element*/
#body {
    background-color: orange;
}

.body {
    background-color: blue;
}

body {
    background-color: red !important;
}

#a {
    color: orangered;
}

.ul li a {
    color: dodgerblue;
}

ul li a {
    color: purple;
}

li a {
    color: forestgreen;
}

a {
    color: red;
}