Transparent caldera form with opaque fields and a background image

/*** FORM STYLING ***/
.caldera-grid .form-control {
    font-size: 20px;
    padding: 16px;
    height: auto;
    box-shadow: none;
    background: rgba(0, 0, 0, 0.85);
    color: #f5f5f5 !important;
    border: none;
}
/*** BUTTON STYLING ***/
.caldera-grid input[type=submit] {
    padding: 10px 16px;
    border-radius: 4px;
    background: #27c9b8;
    color: #fff;
    font-size: 20px;
    border: none;
    float: right;
    transition: all 0.3s ease-in-out;
}
/*** BUTTON HOVER STYLING ***/
.caldera-grid input[type=submit]:hover {
    background: #f15640;
    color: #333;
}
/*** ON CLICK  ***/
.caldera-grid .form-control:focus {
    border-color: transparent;
    box-shadow: none;
}