.card-horizontal {
    display: flex;
    flex: 1 1 auto;
}

.tractlux-bkg {
    background-image: url("../img/Fotolia_119602105_Subscription_XXL-web-1400.jpg");
    position: absolute;
    top: 0;
    /* height: calc(100% - 100px); */
    height: 100%;
    width: 100%;
}

.tractlux-overlay {
    position: absolute;
    top: 0;
    height: 100%;
    width: 100%;
    background-color: rgba(255,255,255,0.6);
}

.logo-connexion {
    display: block;
    height: 60px;
    margin: 30px auto 60px auto;
}

/* .blink{
    animation: blink 0.5s linear infinite;
}
@keyframes blink{
    0%{opacity: 0;}
    50%{opacity: .5;}
    100%{opacity: 1;}
} */

.header.btn.col-md-12:hover{
    background:#E6E6E6;
}