.alert-overlay {
    position:fixed;
    top:0;
    left:0;
    background:rgba(0, 0, 0, 0.6);
    width:100%;
    height:100%;
    z-index: 999999;
}
.alert-content {
    background:#FFF;
    -moz-border-radius:3px;
    -webkit-border-radius:3px;
    border-radius:3px;
    -khtml-border-radius:3px;
    position:fixed;
    z-index:99999999;
    min-width:200px;
    min-height:50px;
    max-width:75%;
    padding: 15px 20px;
    left: 50%;
    top: 100px;
}
.alert-content p {
    font-family: Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #333;
    margin: 10px 0 20px 0;
    text-align: center;
}
.alert-content a {
    font-family: Helvetica, Arial, sans-serif;
    -moz-border-radius:3px;
    -webkit-border-radius:3px;
    border-radius:3px;
    -khtml-border-radius:3px;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 11px;
    text-align: center;
    color: black;
    display: block;
    margin: 0 auto;
    width: 100px;
    background: lightgray;
    text-decoration: none;
    height: 30px;
    line-height: 30px;
}
.alert-content a:hover {
    background: gray;
}