robmc.github.io/paper.html at master · robmc/robmc.github.io · GitHub

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<!DOCTYPE html>
<html lang="en">
	<head>
		<title>Paper</title>
		<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css">
		<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/js/bootstrap.bundle.min.js"></script>
		<style>
			* {
			  margin: 0;
			  padding: 0;
			}
			html, body {
				height:100%;
			}
			:root {
			  --x-offset: 8rem;
			}

			body {
			  font-family: sans-serif;
			}

			form {
			  /* full width/height for margin line */
			  min-height: 100%;
			  position: relative;
			  inset: 0;

			  /* background trick for adding red line */
			  background: linear-gradient(red, red);
			  background-size: 3px 100%;
			  background-position: 6em 0;
			  background-repeat: no-repeat;

			  /* space content off of left side */
			  padding-left: var(--x-offset);
			}

			h1 {
			  margin: 0.25em 0;
			  font-family: 'Bradley Hand', cursive;
			  font-size: 2.5em;
			}

			ul {
			  counter-reset: list;
			}

			li {
			  padding: 1em 0;
			  margin-left: calc(-1 * var(--x-offset)); /* pull border towards left side */
			  padding-left: calc(var(--x-offset)); /* pad back off of left side */
			  list-style: none;
			  display: flex;
			  flex-wrap: wrap;
			  column-gap: 1em;
			  align-items: center;
			  border-bottom: 2px solid rgba(0, 0, 255, 0.25);
			}

			li:first-child {
			  border-top: 2px solid rgba(0, 0, 255, 0.25);
			}

			li:last-child .delete {
			  display: none;
			}

			/* Add Input # inside label using CSS Counter */
			label::before {
			  counter-increment: list;
			  content: "Input " counter(list);
			}

			label {
			  display: flex;
			  align-items: center;
			  column-gap: 0.5em;
			  flex-wrap: wrap;
			}

			input, button {
			  height: 2.25em;
			  padding: 0 0.5em;
			  display: block;
			  box-sizing: border-box;
			  border: none;
			  font-size: 1em;
			  border-radius: 0.25em;
			}

			input {
			  border: 1px solid #ddd;
			}

			button {
			  background: rgb(11, 94, 215);
			  color: #fff;
			}

			button.delete {
			  background: red;
			}
		</style>
	</head>
	<body>
		<form>
		  <h1>
		    To-Do List:
		  </h1>

		  <ul>
		    <li>
		      <label>
		        <input type="text" />
		      </label>
		      <button type="button" id="add">Add Item</button>
		    </li>
		  </ul>
		  <p><strong>Note:</strong> This method is not accessible. The input labels are CSS pseudo elements and are not announced by screen readers. Furthermore, the labels are implicitly associated with the inputs via nesting. Labels should always be explicitly defined. Recommend using label/for associations.</p>
		<footer>
			<a href="https://robertjmccaffery.com/examples.html">Back to Examples</a> | <a href="http://robertjmccaffery.com/">Home</a>
		</footer>
		</form>
		<script>
			const btn = document.getElementById("add")
			const ul = document.querySelector('ul')

			const createDeleteButton = (el) => {
			  const btn = document.createElement("button")
			  btn.classList.add('delete')
			  btn.setAttribute('type', 'button');
			  btn.textContent = "Remove Item"
			  btn.addEventListener('click', () => el.remove())
			  return btn
			  event.preventDefault();
			}

			ul.firstElementChild.appendChild(createDeleteButton(ul.firstElementChild))

			btn.addEventListener("click", e => {
			  const input = document.createElement('input')
			  const li = document.createElement('li')
			  const label = document.createElement('label')

			  label.appendChild(input)
			  li.appendChild(label)
			  li.appendChild(btn) // move button to last list item

			  ul.appendChild(li);
			  li.appendChild(createDeleteButton(li))
			})
		</script>
	</body>
</html>