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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

            
              <h1>jmgModal</h1>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 600,
				height: 50,
				content: 'Este es el contenido de la ventana'});"
        >Modal Simple</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 1000,
				height: 60,
        content: '<iframe src=\'https://escss.blogspot.com\'></iframe>'});"
        >Modal con Iframe</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 100,
				height: 20,
        content: '<img src=\'https://1.bp.blogspot.com/-iYDMJD5wZ6Y/WR3R-CrcejI/AAAAAAAANjU/oAO4TVbqJ9IUtmYY4Dn2AkckJ5Zjv3F0QCLcB/s600/esCss-fav.jpg\'>'});"
        >Modal Imagen</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 400,
				height: 40,
        content: 'Esta es una ventana informativa'},
        ['Aceptar',function(){
             alert('Has pulsado Aceptar. La ventana se cierra automáticamente');
        }]);"
        >Modal con botón "Aceptar"</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 400,
				height: 40,
        content: 'En esta ventana se puede realizar una pregunta'},
        ['Aceptar',function(){
             alert('Has pulsado Aceptar. La ventana se cierra automáticamente');
        }],
        ['Cancelar',function(){
             alert('Has pulsado Cancelar. La ventana se cierra automáticamente');
        }]);"
        >Modal con botones "Aceptar" y "Cancelar"</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 400,
				height: 40,
        content: 'Esta ventana es equivalente a la función prompt de javascript. Para mostrar el input es imprescindible que haya un botón de Aceptar. El botón Cancelar es opcional'},
        ['Aceptar',function(input){
             alert('Has escrito: '+input);
        }], /* obligatorio */
        null, /* boton cancelar, opcional */
        ['Placeholder del input']);"
        >Modal con "Aceptar" y un Input</button>
<button onclick="jmgModal('miventana',{
				title: 'Ventana modal',
				width: 400,
				height: 40,
        content: 'Cambia la id de la ventana (primer parámetro) para mostrar varias ventanas anidadas.<br><button onclick=\'metaventana()\'>Abrir otra ventana</button>'});"
        >METAMODAL: Ventana dentro de Ventana</button>
<script>
// función aparte para no complicar el código
function metaventana() {
  jmgModal('ventana2',{
				title: 'Sub-ventana',
				width: 300,
				height: 20,
        content: 'Contenido de la sub-ventana'});
}
</script>

<p>Pen original de <a href='https://codepen.io/jorgemg/'><b>Jorge mg</b></a> para su artículo como autor invitado en EsCss</p>
            
          
!
            
              .jmgmodal {
position: fixed; margin: auto;
top:0;left:0;right:0;bottom:0;
background: rgba(34,34,68,.8);
box-sizing: content-box;
visibility: hidden; opacity: 0;
transition: all .12s; z-index: 99;
}
.jmgmodal.visible {
visibility: visible; opacity: 1;
}
.jmgmodal * {box-sizing: inherit}
.jmgmodal .panel {
position: absolute; margin: auto;
top:0;left:0;right:0;bottom:0;
max-width: 600px; max-height: 70vh;
background: #0ebeff; border-radius: 10px;
color: #000; padding: 50px 0;
transform: translateY(-25%);
transition: all .12s;
}
.jmgmodal.nofooter .panel {
padding: 50px 0 0 0;
}
.jmgmodal.visible .panel {
transform: none;
}
.jmgmodal .title {
position: absolute; top: 0;
width: 100%; height: 50px;
line-height: 50px;
background: orange;
font-weight: bolder; padding: 0 2em;
box-shadow: 2px 0 10px rgba(0,0,0,.6);
border-radius: 10px 10px 0 0;
box-sizing: border-box;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
}
.jmgmodal .panel .close {
position: absolute; top: .25em; right: .75em;
cursor: pointer; font-size: 25px;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
}
.jmgmodal .panel .content {
max-height: 100%; overflow: auto;
padding: 1em; box-sizing: border-box;
}
.jmgmodal .panel .content iframe:only-child {
border: 0; width: 100%;
height: 100%; height: 80vh;
min-height: 200px;
}
.jmgmodal .panel .content img:only-child {
width: 100%; max-width: 100%;
}
.jmgmodal .panel .footer {
position: absolute; bottom: 0;
width: 100%; background: orange;
font-weight: bolder; padding: 0 .5em;
box-shadow: 2px 0 10px rgba(0,0,0,.6);
border-radius: 0 0 10px 10px;
box-sizing: border-box;
white-space: nowrap;
text-overflow: ellipsis;
overflow: hidden;
text-align: right;
}
.jmgmodal .panel .footer .action {
border-radius: 10px; color: #000;
background: #fff; border: 0;
min-width: 80px; min-height: 35px;
font-weight: bold; cursor: pointer;
margin-left: 20px;
transition: all .12s;
}
.jmgmodal .panel .footer .action:hover {
box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.6);
}

/* estilos del pen, ornamentales */
html {
  background: #fff;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
  color: #224;
  text-align: center;
  font-variant: small-caps;
}
h1 {
  font-weight: 400;
}
button {
  border: 3px solid #224;
  background: #fff;
  padding: 1rem;
  margin: 1rem .5rem;
  font-size: 1.2rem;
  font-variant: small-caps;
  transition: all .5s;
  cursor: pointer;
  box-shadow: inset 0 0 0 rgba(0,0,0,1);
}
button:hover {
  color: #fff;
  box-shadow: inset 0 0 0 10rem rgba(34, 34, 65, .68);
}

            
          
!
            
              /************
* Autor:
*          JorgeMG
*          (https://codepen.io/jorgemg/pen/xEwGEr)
* Licencia: 
*         Creative Commons Reconocimiento-NoComercial-CompartirIgual
*         (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.es_ES)    
* Finalidad:
*         Post divulgativo
*         (https://escss.blogspot.com/2016/09/ventana-modal-javascript-puro.html)
************/


function jmgModal(id, data, ok, cancel, input) {
	data=data || {};
	id="modal-"+id;
	if (document.getElementById(id)==null) {
		var d=document.createElement("div");
		d.className="jmgmodal";
		d.id=id;
		var p=document.createElement("div");
		p.className="panel";
		var t=document.createElement("div");
		t.className="title";
		var cl=document.createElement("div");
		cl.className="close";
		cl.innerHTML='&times;';
		cl.addEventListener('click',function(ev) {
			ev.preventDefault();
			var dTop=this.parentNode.parentNode;
			dTop.classList.remove("visible");
			dTop.querySelector(".panel .content").innerHTML='';
		});
		var ct=document.createElement("div");
		ct.className="content";
		var f=document.createElement("div");
		f.className="footer";
		p.appendChild(t);p.appendChild(cl);p.appendChild(ct);p.appendChild(f);
		d.appendChild(p);
		document.body.appendChild(d);
	}
	var mod=document.getElementById(id),
	p=mod.querySelector(".panel"),
	t=mod.querySelector(".panel .title"),
	ct=mod.querySelector(".panel .content"),
	f=mod.querySelector(".panel .footer");
	if (f==null) {
		mod.classList.remove("nofooter");
		var f=document.createElement("div");
		f.className="footer";
		p.appendChild(f);
	}
	t.innerHTML=data.title || '';
	ct.innerHTML=data.content || '';
	f.innerHTML='';
	if (!isNaN(data.width)) p.style.maxWidth=data.width+'px';
	if (!isNaN(data.height)) p.style.maxHeight=data.height+'vh';
	if (ok && ok.length>1) {
		var param={value:null};
		if (input && input.length>0) {
			var ph=document.createElement("p");
			ph.className="action";
			var txt=document.createElement("input");
			txt.className="action";
			txt.setAttribute("placeholder",input[0]);
			txt.addEventListener('keydown',function(ev) {
				if (ev.keyCode==13 || ev.key=="Enter") {
					ev.preventDefault();
					mod.classList.remove("visible");
					ok[1](param.value);
				}
			});
			ph.appendChild(txt); ct.appendChild(ph);
			param=ct.querySelector("p.action > input.action");
			setTimeout(function(){
				param.focus();
			},100);
		}
		var bOk=document.createElement("button");
		bOk.className="action";
		bOk.innerHTML=ok[0];
		bOk.addEventListener('click',function(ev) {
			ev.preventDefault();
			mod.classList.remove("visible");
			ok[1](param.value);
		});
		f.appendChild(bOk);
	}
	if (cancel && cancel.length>1) {
		var bCancel=document.createElement("button");
		bCancel.className="action";
		bCancel.innerHTML=cancel[0];
		bCancel.addEventListener('click',function(ev) {
			ev.preventDefault();
			mod.classList.remove("visible");
			cancel[1]();
		});
		f.appendChild(bCancel);
	}
	if (f.innerHTML=='') {
		p.removeChild(f);
		mod.classList.add("nofooter");
	}
	setTimeout(function(){
		mod.classList.add("visible");
	},50);
}

            
          
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