Почему не работает?

Question

Почему?

https://code.sololearn.com/WC4aBMkhI5oX/?ref=app

Answer 1

Paste this code on js may be it will work

//var btn = document.getElementsByTagName("button")[0];
var x = 0;
function u() {
x++;
document.getElementsByTagName("button")[0].style.backgroundColor = "green";
document.getElementsByTagName("button")[0].style.color = "#87CEFA";
if (x == 2) {
document.getElementsByTagName("button")[0].style.backgroundColor = "red";
document.getElementsByTagName("button")[0].style.color = "white";
x = 0
}
}

Answer 2

Thank