#vto-modal {
position: fixed; z-index: 1000; left: 0; top: 0;
width: 100%; height: 100%; overflow: auto;
background-color: rgba(0,0,0,0.6);
}
.vto-modal-content {
background-color: #fefefe; margin: 10% auto; padding: 20px;
border: 1px solid #888; width: 80%; max-width: 600px;
text-align: center;
}
#vto-close-modal {
color: #aaa; float: right; font-size: 28px; font-weight: bold; cursor: pointer;
}