How did the confedarte constitution handle thew issue of slavery

the explanation is the answer

Explanation:

While the U. S. Constitution has a clause that states "No bill of attainder or ex post facto law shall be passed", the Confederate Constitutionalso adds a phrase to explicitly protectslavery. No bill of attainder, ex post facto law, or law denying or impairing the right of property in negro slaves shall be passed.