.hidden{
opacity:0;
}

.visible{
opacity:1;
transition:opacity .6s ease;
}

.gs-section.visible{
opacity:1;
transform:translateY(0);
}
.gs-section{
opacity:0;
transform:translateY(40px);
transition:.6s;
}

.gs-section.visible{
opacity:1;
transform:translateY(0);
}