html
html
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<!DOCTYPE html>
<html>
<head>
<title>Page Title</title>
</head>
<body>
<form>
<div class="fecha-de-nacimiento">
<h4>Fecha de nacimiento</h4>
<select id="dia"></select>/
<select id="mes"></select>/
<select id="ano"></select>
<input type="submit">
</div>
</form>
<script type="text/javascript">
for (var i = 1; i <= 31; i++) {
var o = document.createElement("option");
o.value = (i<10?"0":"") + i;
var v = document.createTextNode(o.value);
o.appendChild(v);
document.getElementById("dia").appendChild(o);
}
for (i = 1; i <= 12; i++) {
o = document.createElement("option");
o.value = (i<10?"0":"") + i;
v = document.createTextNode(o.value);
o.appendChild(v);
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css
css
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body {
}
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js
js
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