<html>
<head></head>
<body>
<button onclick="KeySend()">send ctrl + w</button>
</body>
<script>
function KeyPress(e) {
var evtobj = window.event ? event : e
if (evtobj.keyCode == 87 && evtobj.ctrlKey) alert("Ctrl+w");
}
function KeySend() {
var ke = new KeyboardEvent("keydown", {key: "w", keyCode: 87, ctrlKey: true, cancelable: true, bubbles: true});
document.dispatchEvent(ke);
}
document.onkeydown = KeyPress;
</script>
</html><select>
<optgroup label="Группа 1">
<option>Опция 1.1</option>
</optgroup>
<optgroup label="Группа 2">
<option>Опция 2.1</option>
<option>Опция 2.2</option>
</optgroup>
<optgroup label="Группа 3" disabled>
<option>Опция 3.1</option>
<option>Опция 3.2</option>
<option>Опция 3.3</option>
</optgroup>
</select><html>
<body>
<img width="500" height="200" usemap="#somemap" src="upload.wikimedia.org/wikipedia/commons/e/e0/Figures_for_imagemap.png">
<map name="somemap">
<area shape="rect" coords="6, 7, 140, 196" href="ru.wikipedia.org/Прямоугольник">
<area shape="circle" coords="239, 98, 92" href="ru.wikipedia.org/Круг">
<area shape="poly" coords="386,16, 344,56, 350,189, 385,132, 489,190, 496,74, 386,16" href="ru.wikipedia.org/Многоугольник">
</map>
</body>
</html>curl -X POST -d 'phone[]=value1&phone[]=value2' 'http://host/page -v<input type="text" name="phone[]" value="1" />
<input type="text" name="phone[]" value="2" /><div class="col-lg-6 col-md-6 col-sm-6 col-xs-6"> ..... </div>