How do you beat the spider in Limbo?

How do you beat the spider in Limbo? When you approach to where the spider is, it will raise one of its legs and try to kill you with one of its other legs. When it raises one of its legs for the first time, you should run to have it hit the ground instead, instead.

When you approach to where the spider is, it will raise one of its legs and try to kill you with one of its other legs. When it raises one of its legs for the first time, you should run to have it hit the ground instead, instead.