Changing the html or body height using jquery? -

i tryed first answer in chome doesn't works( still have lot of free space under content. can problem?

starting tag <canvas id="arrow_under_slides" height="20" width="1000"> seem display nothing. [edit] (they displaying, position: relative moved location. position:absolute fixes problem in case.)

[edit] this working code arrow-right-content tag example, of canvas tags must changed position: absolute correct top , left values

<canvas id="arrow_right_content" height="814" width="20" style="position: absolute; top: 135px; left: 1182px;"></canvas>