If you go to your homenode, select "change user settings", go to the textbox entitled "On-site CSS Markup", and paste: 
.obscure {
color: black;
background-color: #000000;
}

[download]
Then the tag <p class="obscure"> would be viewed as desired. Unfortunately, the tag is useless as an anti-spoiler until everyone does this. sigh.

In reply to Re^2: black tags by ktross
in thread black tags by cog

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


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