Duplicate IDs
by Raul Bojalil
HTML
<div id="two">
<div style="color: red" id="one"></div>
</div>
<div id="three">
<div style="color: blue" id="one"></div>
</div>JavaScript
document.querySelector("#two #one").innerHTML = "one";
document.querySelector("#three #one").innerHTML = "two";
//document.querySelector(".test1").getElementById("id").innerHTML = "One";