body {
width: 260px;
margin: 0;
padding: 0 10px;
font-family: “Times New Roman”, serif;
font-size: 16px;
}
h1 {
font-size: 18px;
}
.sub{
vertical-align:sub;
font-size:12px;
}
.sup{
vertical-align:super,
font-size:12x;
}
.del{
text-decoration: line-through;
}
.underline{
text-decoration: underline;
}
.italic{
font-style: italic;
}
В чём проблема?