#fundo_alerta{position:fixed;z-index:102;left:0;top:0;right:0;bottom:0;width:100%;height:100%;background-image:url(../css/images/fundo_preto_opaco.png);background-repeat:repeat;cursor:pointer}.alerta{position:fixed;z-index:102;top:50%;left:50%;width:770px;height:380px;margin-left:-390px;margin-top:-190px;overflow:hidden;background-color:#fff;padding:10px;-webkit-border-radius:8px;-moz-border-radius:8px;border-radius:8px}.alerta_conteudo{position:absolute;width:770px;height:350px}.alerta a{position:absolute;z-index:102;top:10px;right:10px}.frameAlerta{width:770px;height:350px;margin-top:28px}