.t-menu__container {
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.3s ease;
  transform: translateY(-10px);
  opacity: 0;
}

.t-menu__container.t-menu__container_show {
  transform: translateY(0);
  opacity: 1;
}

.t-menuburger__line {
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1),
              opacity 0.25s ease;
  will-change: transform, opacity;
}

.t-menu__container,
.t-menuburger__line {
  backface-visibility: hidden;
  transform: translateZ(0);
}