.navBar {
  position: relative;
  width: 100%;
  height: 80px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04);
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: #f7f7f7;
}
.isFixed {
  position: fixed;
  top: 0;
  z-index: 999;
}