JSFiddle - React, Tailwind, and code Playground
HTML
<button id="Copy1">Copy</button>
<span id="ct1">set def sys$system TEST 99</span>
<br>
<br>
<textarea id="holdtext1"></textarea>
<br>
<br>
<button id="Copy2">Copy</button>
<span id="ct2">hello how are ya</span>
<br>
<br>
<textarea id="holdtext2"></textarea>
<br>
<br>
<button id="Copy3">Copy</button>
<span id="ct3">i love tuna melts</span>
<br>
<br>
<textarea id="holdtext3"></textarea>
CSS
span {
font-style: italic;
}
JavaScript
var counter = 0;
if (counter < 1) {
counter = 1;
} else if (counter >= 1) {
counter++;
}
document.getElementById("Copy" + counter).addEventListener("click", ClipBoard, false);
function ClipBoard() {
var num = counter;
var ct = document.getElementById("ct" + num);
var ctxt = ct.innerText;
var hold = document.getElementById("holdtext" + num);
hold.innerText = ctxt;
};