CSS js on mousemove redraw without disappear
javascript,html,css,onmousemove
Two optimisations that may solve your issue: cache $(".circle") in variable before mousemove use transform: translate3d(x,y,z) instead of left+top See: http://jsfiddle.net/rkEMR/3998/...
Click triggers mousemove in Chrome
While the issue is in the bug report for Chrome on Windows 8, it's possible to use temporarily solution to store the mouse position every time the mouse "moves" and check it against the previous mouse position to validate that it has indeed "moved" What to do if "mousemove" and...
How to make canvas -element to fill and refill depending on the mouse position
javascript,jquery,html,canvas,onmousemove
This is because the Canvas literally behaves as a canvas. Your script paints the line green. It cannot un-paint the line. you will need to have an equal opposite function that is constantly filling the line in Red from the other side. you could achieve this a lot more easily...