body{
    width: 800px;
    margin: auto;
    text-align: justify;
    font-family: Arial, Helvetica, sans-serif;
}

p{
    text-align: justify;
    font-family: Arial, Helvetica, sans-serif;
}

a:link {
    color: #000000;
    text-decoration: none;
}

a:visited {
    color: green;
}

a:hover {
    color: royalblue;
    background-color: lightgreen;
}

a:active {
    color: blue;
}

table, th, td {
    border: 1px solid;
    width: 100%;
    padding-left: 10px;
    padding-right: 10px;
    border-collapse: collapse;
    border-color: darkgray;
}
table th{
    text-align: center;
}