增加基本项目配置

node_modules/animate.css/source/attention_seekers/swing.css

@@ -0,0 +1,26 @@
+@keyframes swing {
+  20% {
+    transform: rotate3d(0, 0, 1, 15deg);
+  }
+
+  40% {
+    transform: rotate3d(0, 0, 1, -10deg);
+  }
+
+  60% {
+    transform: rotate3d(0, 0, 1, 5deg);
+  }
+
+  80% {
+    transform: rotate3d(0, 0, 1, -5deg);
+  }
+
+  to {
+    transform: rotate3d(0, 0, 1, 0deg);
+  }
+}
+
+.swing {
+  transform-origin: top center;
+  animation-name: swing;
+}