[theducks]

If I know, I can Search for the Name.
I am a little leery of blindly deleting 'not used', there are oh so may legay ways to use them style="styleA styleZ"
and define them
div.styleA
p.styleZ
.styleA

Then there is the Multi define like I find in the old Webscription stylesheet

body {
    margin-top: 0;
    margin-bottom: 0;
    margin-left: 0;
    margin-right: 0
    }
body {
    margin-left: 5pt;
    margin-right: 5pt
    }
a {
    color: inherit;
    text-decoration: inherit;
    cursor: default
    }
a[href] {
    color: blue;
    text-decoration: underline;
    cursor: pointer
    }
body {
    text-align: justify
    }

Never understood Why