jquery to change style attribute of a div class

I have a slider class like this and I wan to change the style attribute style="left: 336px"

<div id="range-cont">
<div class="slider">
<div class="progress" style="width: 350px;"></div>
    <a class="handle" href="#" **style="left: 336px;"**></a>
</div>
<input id="percentage" class="range" type="range" value="14" name="percentage" min="0" max="100">
<p id="percent-label">%</p>
</div>
</div>

I tried $('.handle').css({'style':'left: 300px'}) but its not working. Not sure what I am doing wrong here

Just try $('.handle').css('left', '300px');

if you just want to set the style attribute use

$('.handle').attr('style','left: 300px');

Or you can use css method of jQuery to set only one css style property

$('.handle').css('left', '300px');

OR same as key value

$('.handle').css({'left': '300px', position});

More info on W3schools

Try with

$('.handle').css({'left': '300px'});

Instead of

$('.handle').css({'style':'left: 300px'})

$('.handle').css('left', '300px');

$('.handle').css({
    left : '300px'
});

$('.handle').attr('style', 'left : 300px');

or use OrnaJS