brandonhimpfen · February 8, 2026 22:59
diff --git a/html-accessible-modal-minimal.html b/html-accessible-modal-minimal.html
 <!doctype html>
 <html lang="en">
 <head>
  <meta charset="utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1" />
  <title>Minimal Accessible Modal</title>
  <style>
    /* Minimal styling just to make the demo usable */
    .modal-backdrop[hidden] { display: none; }
    .modal-backdrop {
      position: fixed; inset: 0;
      background: rgba(0,0,0,0.5);
      display: grid; place-items: center;
      padding: 1rem;
    }
    .modal {
      background: #fff;
      width: min(520px, 100%);
      border-radius: 12px;
      padding: 1rem;
      box-shadow: 0 10px 30px rgba(0,0,0,0.25);
    }
    .modal-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
    .modal-title { margin: 0; font-size: 1.1rem; }
    .modal-close { font: inherit; }
  </style>
 </head>
 <body>
  <!-- Trigger -->
  <button type="button" data-modal-open="demo-modal">
    Open modal
  </button>

  <!-- Backdrop -->
  <div
    class="modal-backdrop"
    id="demo-modal-backdrop"
    hidden
  >
    <!--
      role="dialog" + aria-modal="true" indicates a modal dialog.
      aria-labelledby points to the title element inside.
      aria-describedby points to the main description text.
    -->
    <div
      class="modal"
      role="dialog"
      aria-modal="true"
      aria-labelledby="demo-modal-title"
      aria-describedby="demo-modal-desc"
      data-modal="demo-modal"
      tabindex="-1"
    >
      <div class="modal-header">
        <h2 class="modal-title" id="demo-modal-title">Modal title</h2>
        <button type="button" class="modal-close" data-modal-close aria-label="Close dialog">
          ✕
        </button>
      </div>

      <div id="demo-modal-desc">
        <p>This is minimal accessible modal markup with basic open/close logic.</p>
        <p>Press Escape to close, or click the backdrop.</p>
      </div>

      <div style="margin-top: 1rem; display: flex; gap: .5rem; justify-content: flex-end;">
        <button type="button" data-modal-close>Cancel</button>
        <button type="button">Confirm</button>
      </div>
    </div>
  </div>

  <script>
    // Minimal accessible modal controller:
    // - Opens/closes modal
    // - Restores focus to the trigger
    // - Closes on Escape
    // - Closes on backdrop click
    // Note: For a fully robust solution, add focus trapping. This is kept minimal on purpose.

    const openButtons = document.querySelectorAll("[data-modal-open]");
    const closeSelectors = "[data-modal-close]";
    let lastActiveElement = null;

    function openModal(modalId) {
      const modal = document.querySelector(`[data-modal="${modalId}"]`);
      const backdrop = document.getElementById(`${modalId}-backdrop`);
      if (!modal || !backdrop) return;

      lastActiveElement = document.activeElement;

      backdrop.hidden = false;

      // Prevent background scroll (optional but common)
      document.body.style.overflow = "hidden";

      // Focus the dialog container (or choose the first focusable control)
      modal.focus();
    }

    function closeModal(modalId) {
      const backdrop = document.getElementById(`${modalId}-backdrop`);
      if (!backdrop) return;

      backdrop.hidden = true;
      document.body.style.overflow = "";

      // Restore focus to the element that opened the modal
      if (lastActiveElement && typeof lastActiveElement.focus === "function") {
        lastActiveElement.focus();
      }
      lastActiveElement = null;
    }

    // Open handlers
    openButtons.forEach(btn => {
      btn.addEventListener("click", () => openModal(btn.dataset.modalOpen));
    });

    // Close handlers (buttons inside)
    document.addEventListener("click", (e) => {
      const closeBtn = e.target.closest(closeSelectors);
      if (!closeBtn) return;

      const modal = closeBtn.closest("[data-modal]");
      if (!modal) return;

      closeModal(modal.dataset.modal);
    });

    // Close on Escape
    document.addEventListener("keydown", (e) => {
      if (e.key !== "Escape") return;

      const openBackdrop = document.querySelector(".modal-backdrop:not([hidden])");
      if (!openBackdrop) return;

      const openModalEl = openBackdrop.querySelector("[data-modal]");
      if (!openModalEl) return;

      closeModal(openModalEl.dataset.modal);
    });

    // Close on backdrop click (but not when clicking inside the dialog)
    document.addEventListener("click", (e) => {
      const backdrop = e.target.classList && e.target.classList.contains("modal-backdrop") ? e.target : null;
      if (!backdrop || backdrop.hidden) return;

      const modal = backdrop.querySelector("[data-modal]");
      if (!modal) return;

      closeModal(modal.dataset.modal);
    });
  </script>
 </body>
 </html>
	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1" />
	<title>Minimal Accessible Modal</title>
	<style>
	/* Minimal styling just to make the demo usable */
	.modal-backdrop[hidden] { display: none; }
	.modal-backdrop {
	position: fixed; inset: 0;
	background: rgba(0,0,0,0.5);
	display: grid; place-items: center;
	padding: 1rem;
	}
	.modal {
	background: #fff;
	width: min(520px, 100%);
	border-radius: 12px;
	padding: 1rem;
	box-shadow: 0 10px 30px rgba(0,0,0,0.25);
	}
	.modal-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
	.modal-title { margin: 0; font-size: 1.1rem; }
	.modal-close { font: inherit; }
	</style>
	</head>
	<body>
	<!-- Trigger -->
	<button type="button" data-modal-open="demo-modal">
	Open modal
	</button>

	<!-- Backdrop -->
	<div
	class="modal-backdrop"
	id="demo-modal-backdrop"
	hidden
	>
	<!--
	role="dialog" + aria-modal="true" indicates a modal dialog.
	aria-labelledby points to the title element inside.
	aria-describedby points to the main description text.
	-->
	<div
	class="modal"
	role="dialog"
	aria-modal="true"
	aria-labelledby="demo-modal-title"
	aria-describedby="demo-modal-desc"
	data-modal="demo-modal"
	tabindex="-1"
	>
	<div class="modal-header">
	<h2 class="modal-title" id="demo-modal-title">Modal title</h2>
	<button type="button" class="modal-close" data-modal-close aria-label="Close dialog">
	✕
	</button>
	</div>

	<div id="demo-modal-desc">
	<p>This is minimal accessible modal markup with basic open/close logic.</p>
	<p>Press Escape to close, or click the backdrop.</p>
	</div>

	<div style="margin-top: 1rem; display: flex; gap: .5rem; justify-content: flex-end;">
	<button type="button" data-modal-close>Cancel</button>
	<button type="button">Confirm</button>
	</div>
	</div>
	</div>

	<script>
	// Minimal accessible modal controller:
	// - Opens/closes modal
	// - Restores focus to the trigger
	// - Closes on Escape
	// - Closes on backdrop click
	// Note: For a fully robust solution, add focus trapping. This is kept minimal on purpose.

	const openButtons = document.querySelectorAll("[data-modal-open]");
	const closeSelectors = "[data-modal-close]";
	let lastActiveElement = null;

	function openModal(modalId) {
	const modal = document.querySelector(`[data-modal="${modalId}"]`);
	const backdrop = document.getElementById(`${modalId}-backdrop`);
	if (!modal \|\| !backdrop) return;

	lastActiveElement = document.activeElement;

	backdrop.hidden = false;

	// Prevent background scroll (optional but common)
	document.body.style.overflow = "hidden";

	// Focus the dialog container (or choose the first focusable control)
	modal.focus();
	}

	function closeModal(modalId) {
	const backdrop = document.getElementById(`${modalId}-backdrop`);
	if (!backdrop) return;

	backdrop.hidden = true;
	document.body.style.overflow = "";

	// Restore focus to the element that opened the modal
	if (lastActiveElement && typeof lastActiveElement.focus === "function") {
	lastActiveElement.focus();
	}
	lastActiveElement = null;
	}

	// Open handlers
	openButtons.forEach(btn => {
	btn.addEventListener("click", () => openModal(btn.dataset.modalOpen));
	});

	// Close handlers (buttons inside)
	document.addEventListener("click", (e) => {
	const closeBtn = e.target.closest(closeSelectors);
	if (!closeBtn) return;

	const modal = closeBtn.closest("[data-modal]");
	if (!modal) return;

	closeModal(modal.dataset.modal);
	});

	// Close on Escape
	document.addEventListener("keydown", (e) => {
	if (e.key !== "Escape") return;

	const openBackdrop = document.querySelector(".modal-backdrop:not([hidden])");
	if (!openBackdrop) return;

	const openModalEl = openBackdrop.querySelector("[data-modal]");
	if (!openModalEl) return;

	closeModal(openModalEl.dataset.modal);
	});

	// Close on backdrop click (but not when clicking inside the dialog)
	document.addEventListener("click", (e) => {
	const backdrop = e.target.classList && e.target.classList.contains("modal-backdrop") ? e.target : null;
	if (!backdrop \|\| backdrop.hidden) return;

	const modal = backdrop.querySelector("[data-modal]");
	if (!modal) return;

	closeModal(modal.dataset.modal);
	});
	</script>
	</body>
	</html>
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