.lds-ring {
    display: inline-block;
    display: block;
    Z-INDEX: 1500;
    position: fixed;
    top: 34%;
    left: 48%;
    width: 270px;
    height: 270px;
}

    .lds-ring div {
        box-sizing: border-box;
        display: block;
        position: absolute;
        width: 71px;
        height: 71px;
        border: 6px solid #dfc;
        border-radius: 50%;
        animation: lds-ring 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
        border-color: #fff transparent transparent transparent;
        overflow: auto; /* Enable scroll if needed */
        background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
        -moz-box-shadow: 0 0 5px #fff;
        -webkit-box-shadow: 0 0 5px #FFF;
    }

        .lds-ring div:nth-child(1) {
            animation-delay: -0.45s;
        }

        .lds-ring div:nth-child(2) {
            animation-delay: -0.3s;
        }

        .lds-ring div:nth-child(3) {
            animation-delay: -0.15s;
        }

@keyframes lds-ring {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

#page-overlay {
    background: none repeat scroll 0 0 black;
    position: fixed;
    display: block;
    opacity: 0.5;
    z-index: 1499;
    /*// or, higher left: 0;*/
    top: 0;
    height: 100%;
    width: 100%;
}

#page-overlayTabAlimentacao {
    background: none repeat scroll 0 0 black;
    position: fixed;
    display: block;
    opacity: 0.5;
    z-index: 1499;
    /*// or, higher left: 0;*/
    top: 0;
    height: 100%;
    width: 100%;
}

#progressiveBar {
    display: inline-block;
    display: block;
    Z-INDEX: 1500;
    position: fixed;
    top: 34%;
    left: 48%;
    width: 270px;
    height: 10%;
}


#progressbar {
    background-color: dodgerblue;
    border-color: #fff transparent transparent transparent;
    overflow: auto; /* Enable scroll if needed */
    background-color: rgba(0,0,0,0.4); /* Black w/ opacity */
    -moz-box-shadow: 0 0 5px #fff;
    -webkit-box-shadow: 0 0 5px #FFF;
}