I'd probably use this style:

my @headings = ({key => 'k',    name => 'Kanji',      class => 'kanji'
+},
                {key => 'skip', name => 'SKIP',       class => 'skip-c
+ode'},
                {key => 'co',   name => 'Suggestion', class => 'skip-c
+ode'},
                {key => 'disc', name => 'Discussion'});
[download]

But that's just my personal preference (you can guess, I prefer compactness).

At work, we don't align at all, and use tabs to indent, so we'd get the boring

my @headings = (
    {
        key => 'k', name => 'Kanji', class => 'kanji'
    },
    {
        key => 'skip', name => 'SKIP', class => 'skip-code'
    },
...
);
[download]