.lang_item {
  padding: 10px;
  cursor: pointer;
  translate: all 0.3s;
}

.lang_item:hover {
  background-color: #f5f5f5;
  color: rgb(22, 86, 197);
  font-weight: bold;
}

.lang_item.active {
  background-color: #f5f5f5;
  color: rgb(22, 86, 197);
  font-weight: bold;
}

.nav_warp {
  margin-left: 20px;
  box-sizing: border-box;
  height: 100px;
  display: flex;
  align-items: center;
  color: #fff;
  cursor: pointer;
  flex-direction: column;
  justify-content: space-around;
  padding-top: 14px;
  padding-bottom: 13px;
  font-size: 14px;
}

.nav_warp .iconfont {
  font-size: 20px;
  font-weight: bold;
}


.btn_animation {
  animation: btn_animation 1s infinite;
}

.btn_animation:hover {
  animation: none;
}

@keyframes btn_animation {
  from {
    transform: scale(1);
  }

  50% {
    transform: scale(.9);
  }

  to {
    transform: scale(1);
  }
}