I try to pull a sphere to left since 1 month

hi guys, sorry if my question is stupid, but i try since more than 1 month to do that and i can’t find the solution.
So i have a sphere on the center of the window, there is many elements clickable on it, and i want to put the shpere on left border by the middle of the sphere, and i need that be responsiv, so need to align on left (and probably resize, i tryed that to…) on all window size…

i found on exemple on three js who is aproximatly what i need. (just for what i explain)
here : http://news-lab-trends-experiment.appspot.com/

any ideas ?