Insect and Spider Identification: CLOSED: Spider ID plase, 1 by Alicia85

Alicia85 wrote:
This one scared the life out of me as it ran after my almost 2 year old daughter. I could only get the bottom of him, but the top is the same light brown color his body is. He looks like he has big, black fangs and the web he's spun in the tiny jar he's in looks like cotton, like when a dog tears the stuffing out of a stuffed animal. He's seems agressive, and looked like he could jump. Doesn't look like the regular dark wolf spider's I get in my house.
Can you tell me what kind of spider this is, or at least if it's dangerous please?