.uk-active[data-uk-sticky] {
     box-sizing: border-box;
     z-index: 980;
}

.uk-sticky-placeholder > * {
     backface-visibility: hidden;
}

[data-uk-sticky][class*="uk-animation-"] {
     animation-duration: 0.2s;
}

.uk-animation-reverse[data-uk-sticky] {
     animation-duration: 0.2s;
}