.hookFormBusy {
    position: relative;
}

.hookFormBusy:before {
    content: '';
    position: absolute;
    top: 0px;
    right: 0px;
    width:100%;
    height:100%;
    background: #fff;
    opacity: 0.8;
    z-index: 3;
}

.hookFormBusy:after {
    content: '';
    border: 2px solid #f3f3f3;
    border-radius: 50%;
    border-top: 2px solid #3498db;
    width: 20px;
    height: 20px;
    -webkit-animation: spin 0.5s linear infinite; /* Safari */
    animation: spin 0.5s linear infinite;
    display: inline-block;
    position: absolute;
    top: 15px;
    left: 30px;
    z-index: 3;
}


/* Safari */
@-webkit-keyframes spin {
    0% {
        -webkit-transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
    }
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.hookInputCaption {
    display: inline-block;
    margin: 10px 6px;
    color: #da5050;
    position: absolute;
    left: 0;
    bottom: -40px;
}

.hookInputCaption.success {
    color: green;
}