PASS: First Caption aligned to the bottom
PASS: Caption with a fixed position
PASS: Caption with opacity 0.7
PASS: Normal Caption
HEADER
Some body content
FOOTER
PASS: Caption with a fixed position and opacity 0.6
PASS: Caption with opacity 0.5 in one of its child.
PASS: Caption with opacity 0.4 and fixed position of one of the child.