.class1 A:link {text-decoration: none}
.class1 A:visited {text-decoration: none}
.class1 A:active {text-decoration: none}
.class1 A:hover {color: black;font:bold}

.class2 A:link {text-decoration: underline overline}
.class2 A:visited {text-decoration: underline overline}
.class2 A:active {text-decoration: underline overline}
.class2 A:hover {text-decoration: underline; color: green;}

.class3 A:link {text-decoration: underline overline}
.class3 A:visited {text-decoration: underline overline}
.class3 A:active {text-decoration: underline overline}
.class3 A:hover {text-decoration: underline; color: green;}

.class4 A:link {
	text-decoration: underline overline;
	padding-bottom: 1px;
}

.class4 A:visited {text-decoration: underline overline}
.class4 A:active {text-decoration: underline overline}
.class4 A:hover {text-decoration: underline; color: green;}