html,
body {
    min-height: 100%;
    min-width: 100%;
    position: absolute;
    background: rgb(130,50,43);
}
#formulario{
    background: rgb(130,50,43);
    text-align: -webkit-center;
    text-align: -moz-center;
    text-align: -ms-center;
    border-radius: 4px;
}
.panel, .panel-footer{background: rgba(0,0,0,0) !important}
input{
    background: rgba(255,255,255,.3) !important;
    color:#F2F2F2 !important;
    border: none!important
}
span.input-group-addon{
    background: rgba(255,255,255,.5) !important;
    color:#F2F2F2 !important;
    border: none!important
}
::-webkit-input-placeholder{color:#F2F2F2 !important;font-size: 12pt;}
:-moz-placeholder{color:#F2F2F2 !important;font-size: 12pt;}
::-moz-placeholder{color:#F2F2F2 !important;font-size: 12pt;}
:-ms-input-placeholder{color:#F2F2F2 !important;font-size: 12pt;}

.panel-footer{padding: 15px !important}

.img {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    right: 0;
    background-image: url("../imagenes/lineas.png");
}