The uppermost part is malfunctioning

Below is the snippet of code:

$('> li', this).each(function (index) {
    var top_space = $(this).css('padding-top');
    $(this).prepend('<div></div>');
    $('> div', this).css({
        position: "absolute",
        top: -top_space,
        width: "100%",
        height: top_space,
            "z-index": 0
    });
});

Upon inspecting the element, here is the output:



Notice the absence of the top attribute, however, when the negative sign is removed...



There is a top attribute displayed, but unfortunately it remains at top:0



Despite spending nearly an hour on this, I am unable to pinpoint the issue. What might I be overlooking?

Answer №1

Give this a shot -

top: "-" + top_space,

Answer №2

Employ the plus sign + to concatenate strings

result:  "-" + result_value

Example

Answer №3

When working with your top_space, remember that it will be in string format, so you cannot simply write "-top_space".

Instead, try: -(parseInt(top_space))

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