How did the confederate constitution handle the issue of slavery?

The Confederate States Constitution, formally the Constitution of the Confederate States of America, was the supreme law of the Confederate States, as adopted on March 11, 1861, and in effect from February 22, 1862, through the conclusion of the American Civil War.[1] The Confederacy also operated under a Provisional Constitution from February 8, 1861, to February 22, 1862.[2] The original Provisional Constitution is currently located at the Museum of the Confederacy in Richmond, Virginia,[3] and differs slightly from the version later adopted. The final, hand-written document is currently located in the University of Georgia archives at Athens, Georgia.[3] In regard to most articles of the Constitution, the document is a word-for-word duplicate of the United States Constitution. However, there are crucial differences between the two documents, in tone and legal content, primarily regarding slavery