why did my seedling fall over

[M.B.A.]

it is still growing good except it leands on the side of the pot. the leaves are bigger then the rest of the plants but it has no stem strength. what happened and how would i fix something like this

i had the same problem too 6 days ago. You need to prop it up evenly w/2 straight sticks(1st pic). Then have the fan blowing on it so it builds the stock. Will work out for the best that way. Mine is lookin great(2nd and 3rd pix).