.form-vereinsfreizeit {
    position: relative;
}

.fouc-overlay {
    position:   absolute;
    z-index:    3001;
    top:        0;
    left:       0;
    height:     100%;
    width:      100%;
    background: rgba( 255, 255, 255, .8 )
    url('../../../images/ajax-loader.gif')
    50% 50%
    no-repeat;
}