.header {
    position: sticky;
    display: flex
;
    flex-direction: row;
    justify-content: flex-start;
    align-items: center;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--tf-bg2);
    border-bottom: 1px solid rgb(3 255 0 / 0%);
    height: 80px;
    z-index: 1054;
}