CSS Clear does not work with Inline and Inline-block elements

FLOATING
{float: left}
(Inline-Block Element) - {clear: left} - Apollo 11 was the spaceflight that landed the first humans, Americans Neil Armstrong and Buzz Aldrin, on the Moon on July 20, 1969, at 20:18 UTC. Armstrong became the first to step onto the lunar surface 6 hours later on July 21 at 02:56 UTC.