Question

I often use the CSS universal selector to reset the dimensions in my HTML document:

* {
    border: 0;
    margin: 0; 
    padding: 0; 
}

Can this be done with JavaScript too?

For normal HTML elements there is the style property.
But how to speak to the universal selector?

Answer 1

getElementsByTagName("*") will return all elements from DOM. Then you may set styles for each element in the collection:

var allElements = document.getElementsByTagName("*");
for (var i = 0, len = allElements.length; i < len; i++) {
    var element = allElements[i];
    // element.style.border = ...
}