@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0);
        -ms-transform: rotate(0);
        transform: rotate(0)
    }

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

@keyframes spin {
    0% {
        -webkit-transform: rotate(0);
        -ms-transform: rotate(0);
        transform: rotate(0)
    }

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

.block--calculadora .loading:after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 150px;
    height: 150px;
    margin: -75px 0 0 -75px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-top-color: #fff;
    -webkit-animation: 1.5s linear infinite spin;
    animation: 1.5s linear infinite spin
}

@media (max-width: 767px)
{
    #main-header
    {
        position: absolute;
    }

    .block--banner-principal-home
    {
        display: none;
    }
}