diff --git a/js/h5p-confirmation-dialog.js b/js/h5p-confirmation-dialog.js
index 7675d06..3263b76 100644
--- a/js/h5p-confirmation-dialog.js
+++ b/js/h5p-confirmation-dialog.js
@@ -18,12 +18,14 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
 
     // Default options
     options = options || {};
-    options.headerText = options.headerText ||
-      'Confirm action';
-    options.dialogText = options.dialogText ||
-      'Please confirm that you wish to proceed. This action will not be reversible.';
-    options.cancelText = options.cancelText || 'Cancel';
-    options.confirmText = options.confirmText || 'Confirm';
+    options.headerText = options.headerText || H5P.t('confirmDialogHeader');
+    options.dialogText = options.dialogText || H5P.t('confirmDialogBody');
+    options.cancelText = options.cancelText || H5P.t('cancelLabel');
+    options.confirmText = options.confirmText || H5P.t('confirmLabel');
+
+    // Offset of exit button
+    var exitButtonOffset = 2 * 16;
+    var shadowOffset = 8;
 
     // Create background
     var popupBackground = document.createElement('div');
@@ -63,35 +65,71 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
     body.appendChild(buttons);
 
     // Cancel button
-    var cancelButton = document.createElement('button');
+    var cancelButton = document.createElement('a');
     cancelButton.classList.add('h5p-core-cancel-button');
-    cancelButton.tabindex = 0;
+    cancelButton.href = '#';
     cancelButton.textContent = options.cancelText;
-    cancelButton.onclick = function () {
+    cancelButton.onclick = function (e) {
       self.hide();
       self.trigger('canceled');
+      e.preventDefault();
+    };
+    cancelButton.onkeydown = function (e) {
+      if (e.which === 32) { // Space
+        // Prevent jumping
+        e.preventDefault();
+      }
+      else if (e.which === 13) { // Enter
+        self.hide();
+        self.trigger('canceled');
+        e.preventDefault();
+      }
     };
     buttons.appendChild(cancelButton);
 
     // Confirm button
-    var confirmButton = document.createElement('button');
+    var confirmButton = document.createElement('a');
     confirmButton.classList.add('h5p-core-button',
       'h5p-confirmation-dialog-confirm-button');
-    confirmButton.tabindex = 0;
+    confirmButton.href = '#';
     confirmButton.textContent = options.confirmText;
-    confirmButton.onclick = function () {
+    confirmButton.onclick = function (e) {
       self.hide();
       self.trigger('confirmed');
+      e.preventDefault();
+    };
+    confirmButton.onkeydown = function (e) {
+      if (e.which === 32) { // Space
+        // Prevent jumping
+        e.preventDefault();
+      }
+      else if (e.which === 13) { // Enter
+        self.hide();
+        self.trigger('confirmed');
+        e.preventDefault();
+      }
     };
     buttons.appendChild(confirmButton);
 
     // Exit button
-    var exitButton = document.createElement('button');
+    var exitButton = document.createElement('a');
+    exitButton.href = '#';
     exitButton.classList.add('h5p-confirmation-dialog-exit');
-    exitButton.tabindex = 0;
-    exitButton.onclick = function () {
+    exitButton.onclick = function (e) {
       self.hide();
       self.trigger('canceled');
+      e.preventDefault();
+    };
+    exitButton.onkeydown = function (e) {
+      if (e.which === 32) { // Space
+        // Prevent jumping
+        e.preventDefault();
+      }
+      else if (e.which === 13) { // Enter
+        self.hide();
+        self.trigger('canceled');
+        e.preventDefault();
+      }
     };
     popup.appendChild(exitButton);
 
@@ -114,13 +152,17 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
      * Fit popup to container. Makes sure it doesn't overflow.
      */
     var fitToContainer = function () {
-      var popupOffset = parseInt(popup.style.top, 10) + popup.offsetHeight;
+      var popupOffsetTop = parseInt(popup.style.top, 10);
 
-      // Overflows wrapper
-      if (popupOffset > wrapperElement.offsetHeight) {
-        var overflowedContainerOffset = wrapperElement.offsetHeight - popup.offsetHeight;
-        popup.style.top = overflowedContainerOffset + 'px';
+      // Overflows height
+      if (popupOffsetTop + popup.offsetHeight > wrapperElement.offsetHeight) {
+        popupOffsetTop = wrapperElement.offsetHeight - popup.offsetHeight;
       }
+
+      if (popupOffsetTop - exitButtonOffset <= 0) {
+        popupOffsetTop = exitButtonOffset;
+      }
+      popup.style.top = popupOffsetTop + 'px';
     };
 
     /**
@@ -134,7 +176,10 @@ H5P.ConfirmationDialog = (function (EventDispatcher) {
       fitToContainer();
       popupBackground.classList.remove('hiding');
       popup.classList.remove('hidden');
-      cancelButton.focus();
+
+      // Programmatically focus popup
+      popup.setAttribute('tabindex', '-1');
+      popup.focus();
 
       return this;
     };
diff --git a/js/h5p.js b/js/h5p.js
index dfa6671..003f179 100644
--- a/js/h5p.js
+++ b/js/h5p.js
@@ -868,9 +868,9 @@ H5P.error = function (err) {
  *
  * @param {string} key
  *   Translation identifier, may only contain a-zA-Z0-9. No spaces or special chars.
- * @param {Object} vars
+ * @param {Object} [vars]
  *   Data for placeholders.
- * @param {string} ns
+ * @param {string} [ns]
  *   Translation namespace. Defaults to H5P.
  * @returns {string}
  *   Translated text
diff --git a/styles/h5p-confirmation-dialog.css b/styles/h5p-confirmation-dialog.css
index b7b4475..05e3a3f 100644
--- a/styles/h5p-confirmation-dialog.css
+++ b/styles/h5p-confirmation-dialog.css
@@ -25,6 +25,10 @@
   transition: opacity 0.1s linear 0s, visibility 0s linear 0.1s;
 }
 
+.h5p-confirmation-dialog-popup:focus {
+  outline: none;
+}
+
 .h5p-confirmation-dialog-popup {
   position: absolute;
   display: flex;
@@ -32,7 +36,7 @@
   justify-content: center;
 
   box-sizing: border-box;
-  max-width: calc(100% - 2em);
+  max-width: 35em;
   min-width: 25em;
 
   top: 2em;
@@ -77,6 +81,11 @@
   float: right;
 }
 
+.h5p-confirmation-dialog-exit:focus,
+.h5p-confirmation-dialog-exit:hover {
+  color: #555;
+}
+
 .h5p-confirmation-dialog-exit {
   position: absolute;
   background: none;
@@ -86,6 +95,7 @@
   right: -1.15em;
   color: #777;
   cursor: pointer;
+  text-decoration: none;
 }
 
 .h5p-confirmation-dialog-exit:before {
diff --git a/styles/h5p-core-button.css b/styles/h5p-core-button.css
index e073e74..f7cc3f1 100644
--- a/styles/h5p-core-button.css
+++ b/styles/h5p-core-button.css
@@ -16,6 +16,7 @@
   text-align: center;
   text-shadow: none;
   vertical-align: baseline;
+  text-decoration: none;
 }
 .h5p-core-button:hover,
 .h5p-core-button:focus {
@@ -49,6 +50,7 @@
   color: #a00;
   margin-right: 1em;
   font-size: 1em;
+  text-decoration: none;
 }
 
 .h5p-core-cancel-button:hover,