Learn CSS for beginner : Final part

The code below covers all of the CSS methods in this section. If you save this as your CSS file and look at the HTML file then you should now
understand what each CSS property does and how to apply them. The best way to fully understand all of this is to mess around with the HTML and the CSS files and see what happens when you change things. 

body {
    font-family: arial, helvetica, sans-serif;
    font-size: 14px;
    color: black;
    background-color: #ffc;
    margin: 20px;
    padding: 0;
}

/* This is a comment, by the way */

p {
    line-height: 21px;
}

h1 {
    color: #ffc;
    background-color: #900;
    font-size: 2em;
    margin: 0;
    margin-bottom: 7px;
    padding: 4px;
    font-style: italic;
    text-align: center;
    letter-spacing: 0.5em;
    border-bottom-style: solid;
    border-bottom-width: 0.5em;
    border-bottom-color: #c00;
}

h2 {
    color: white;
    background-color: #090;
    font-size: 1.5em;
    margin: 0;
    padding: 2px;
    padding-left: 14px;
}

h3 {
    color: #999;
    font-size: 1.25em;
}

img {
    border-style: dashed;
    border-width: 2px;
    border-color: #ccc;
}

a {
    text-decoration: none;
}

strong {
    font-style: italic;
    text-transform: uppercase;
}

li {
    color: #900;
    font-style: italic;
}

table {
    background-color: #ccc;
}