reader/custom-tab-bar/index.wxss

.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: white;
  display: flex;
  box-sizing: border-box;
  padding: 14rpx 0rpx;
  padding-bottom: calc(env(safe-area-inset-bottom) + 14rpx);
  box-shadow: rgba(0, 0, 0, 0.35) 0px 30rpx 20rpx 20rpx;
}
.tab-bar .tab-bar-item {
  position: relative;
  flex: 1;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding-bottom: 10rpx;
}
.tab-bar .tab-bar-item .noticeTips {
  position: absolute;
  left: 100rpx;
  top: -12rpx;
  width: 28rpx;
  padding: 4rpx 0rpx;
  border-radius: 40rpx;
  color: white;
  font-size: 16rpx;
  text-align: center;
  background-color: #FF0000;
}
.tab-bar .tab-bar-item image {
  width: 48rpx;
  height: 48rpx;
}
.tab-bar .tab-bar-item view {
  font-size: 28rpx;
  margin-top: 10rpx;
}
.tab-bar .mask {
  position: absolute;
  top: 0rpx;
  width: 100%;
  height: 100%;
  z-index: 9;
  background: rgba(0, 0, 0, 0.7);
}
.bounce {
  animation: elasticity 1.2s linear;
}
/* Q弹动画关键帧 */
@keyframes elasticity {
  0% {
    transform: matrix3d(0.92, 0, 0, 0, 0, 0.92, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  3.4% {
    transform: matrix3d(0.938, 0, 0, 0, 0, 0.933, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  4.7% {
    transform: matrix3d(0.945, 0, 0, 0, 0, 0.94, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  6.81% {
    transform: matrix3d(0.95, 0, 0, 0, 0, 0.956, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  9.41% {
    transform: matrix3d(0.942, 0, 0, 0, 0, 1.084, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  10.21% {
    transform: matrix3d(0.971, 0, 0, 0, 0, 1.113, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  13.61% {
    transform: matrix3d(1.062, 0, 0, 0, 0, 1.166, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  14.11% {
    transform: matrix3d(1.07, 0, 0, 0, 0, 1.165, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  17.52% {
    transform: matrix3d(1.104, 0, 0, 0, 0, 1.12, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  18.72% {
    transform: matrix3d(1.106, 0, 0, 0, 0, 1.094, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  21.32% {
    transform: matrix3d(1.098, 0, 0, 0, 0, 1.035, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  24.32% {
    transform: matrix3d(1.075, 0, 0, 0, 0, 0.98, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  25.23% {
    transform: matrix3d(1.067, 0, 0, 0, 0, 0.969, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  29.03% {
    transform: matrix3d(1.031, 0, 0, 0, 0, 0.948, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  29.93% {
    transform: matrix3d(1.024, 0, 0, 0, 0, 0.949, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  35.54% {
    transform: matrix3d(0.99, 0, 0, 0, 0, 0.981, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  36.74% {
    transform: matrix3d(0.986, 0, 0, 0, 0, 0.989, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  41.04% {
    transform: matrix3d(0.98, 0, 0, 0, 0, 1.011, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  44.44% {
    transform: matrix3d(0.983, 0, 0, 0, 0, 1.016, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  52.15% {
    transform: matrix3d(0.996, 0, 0, 0, 0, 1.003, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  59.86% {
    transform: matrix3d(1.003, 0, 0, 0, 0, 0.995, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  63.26% {
    transform: matrix3d(1.004, 0, 0, 0, 0, 0.996, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  75.28% {
    transform: matrix3d(1.001, 0, 0, 0, 0, 1.002, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  85.49% {
    transform: matrix3d(0.999, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  90.69% {
    transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
  100% {
    transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
  }
}