增加基本项目配置

node_modules/animate.css/source/flippers/flipInY.css

@@ -0,0 +1,30 @@
+@keyframes flipInY {
+  from {
+    transform: perspective(400px) rotate3d(0, 1, 0, 90deg);
+    animation-timing-function: ease-in;
+    opacity: 0;
+  }
+
+  40% {
+    transform: perspective(400px) rotate3d(0, 1, 0, -20deg);
+    animation-timing-function: ease-in;
+  }
+
+  60% {
+    transform: perspective(400px) rotate3d(0, 1, 0, 10deg);
+    opacity: 1;
+  }
+
+  80% {
+    transform: perspective(400px) rotate3d(0, 1, 0, -5deg);
+  }
+
+  to {
+    transform: perspective(400px);
+  }
+}
+
+.flipInY {
+  backface-visibility: visible !important;
+  animation-name: flipInY;
+}