Modal feito com CSS e 100% customizável!
CSS
/* Modal */
.close {
background-color: #00587A;
color: white;
border: 3px solid #00587A;
line-height: 25px;
position: absolute;
right: -12px;
text-align: center;
top: -10px;
width: 24px;
text-decoration: none;
font-weight: bold;
-webkit-transition-duration: 0.4s;
transition-duration: 0.4s;
}
.modalDialog:target {
opacity:1;
pointer-events: auto;
}
.modalDialog > div {
width: 400px;
position: relative;
margin: 10% auto;
padding: 5px 20px 13px 20px;
border-radius: 0px;
background: #fff;
background-color: #008891;
color: white;
}
.modalDialog {
position: fixed;
font-family: Arial, Helvetica, sans-serif;
top: 0;
right: 0;
bottom: 0;
left: 0;
background: rgba(0,0,0,0.8);
z-index: 99999;
opacity:0;
-webkit-transition: opacity 400ms ease-in;
-moz-transition: opacity 400ms ease-in;
transition: opacity 400ms ease-in;
pointer-events: none;
}
HTML
Para abrir o modal
<a href="#openModal" class="btn">Abrir modal</a>
Conteúdo do modal
<div id="openModal" class="modalDialog">
<div>
<a href="#close" title="Close" class="close">X</a>
<h2>Modal</h2>
<p>Conteúdo do modal</p>
</div>
</div>
Preview
http://nano-off.com.br/modal
Não fui eu que fiz, eu achei vagando na internet (não lembro onde eu achei). Então créditos ao nego que fez.