Should empty ad units serve any purpose?

Question

I recently cleaned up a dirty CSS template that someone else did. Among other things, there were many classes that were not used, duplicated selectors for merging, etc.

One thing I'm not sure about: empty ad units. There are 10-20 selectors that do not have style information attached.

Fragment 1:

/* Thead */
thead th {padding: .5em .4em; text-align: left;}
thead td {}

/* Tbody */
tbody td {padding: .5em .4em;}
tbody th {}

tbody .alt td {}
tbody .alt th {}

/* Tfoot */
tfoot th {}
tfoot td {}

Fragment 2:

#extras ul {
    list-style: none;
    margin: 0;
}

    #extras li {}

Do these blank ads allow any purpose? I assume they are placeholders if the designer wanted to come back and add something.

If I delete statements at all, the site looks “excellent”, but ideally I would have a direct answer before I do this.

In the search attempt, a discussion of the pseudo-class basically appeared :empty.

MDN CSS , :

, null.

, ?

Answer 1

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