html5shiv - why is it only for IE?

Question

I want to start using some HTML5 tags, but worried how it will render on browsers that do not support HTML5. It seems like html5shiv is a solution I can use for IE browsers <

Answer 1

Other browsers support non-standard elements simply by setting their css display property:

header,
footer,
article,
section,
...etc... {
    display: block;
}

For old versions of Firefox and webkit based browsers (pre HTML5) this was all that was necessary.