Javascript Style Property Is Empty

I need to calculate the width of an element's border. If I set it explicitly (via CSS), then I can access it in JavaScript by: element.style.borderWidth However, if only spec

Solution 1:

You can use the window.getComputedStyle for modern browsers

window.getComputedStyle(element).borderBottomWidth;

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For IE pre-9 you will have to use an alternative

element.currentStyle.borderBottomWidth