Problems with passing a variable

JavaScript
1

I would like to pass a variable to jquerys .css({}) as illustrated below.
But the variable place_slider_buttons is not passed WHY?


var place_slider_buttons = ((counter * 10) + (counter * 80))/2;
$('.cs-buttons').css({margin:'0 0 0 + place_slider_buttons + "px"'})

Thx

2

the answer to my question was

$('.cs-buttons').css('margin-left',place_slider_buttons);