A waterproof case for containing a portable device including at least one operation part offset in a direction perpendicular to an inserting direction of the portable device into the case body of the waterproof case, includes at least one operation part that operatively cooperates with the at least one operation part of the portable device, and a moving and holding device that moves the portable device in a direction perpendicular to the inserting direction of the portable device after the portable device is inserted into the case body and that holds the portable device in a moved position so as to operatively cooperate the at least one operation part of the portable device with the at least one operation part of the case body.