.k-button-overlay, .k-button::before {
    border-radius: inherit;
    content: "";
    background: #002b97;
    opacity: 0;
    display: none;
    pointer-events: none;
    position: absolute;
    left: -1px;
    right: -1px;
    top: -1px;
    bottom: -1px;
    z-index: 0;
    transition: opacity .2s ease-in-out;
}