Does this myspace have built-in spoiler tags? If not, here's a cool solution that was used on reddit.
Enter this CSS into your profile:
a[href="#s"] {
background-color: black;
color: black;
}
a[href="#s"]:hover {
background-color: black;
color: white;
}
" should be "
Then type whatever you want to spoiler like this: [spoiler here](#s)
and it'll show up as spoiler here. Mouse over the black rectangle and the spoilered text will appear.
It uses the markdown link syntax but goes to an ID in the page instead of a full URL.