修复 src 结构

src/component/formItem/index.less

@@ -0,0 +1,48 @@
+@error_color: red;
+
+.layui-required {
+  color: @error_color;
+  font-size: 12px;
+  line-height: 1;
+}
+
+.layui-form .layui-form-item {
+  .layui-input-block,
+  .layui-input-inline {
+    .layui-form-danger {
+      &, .layui-input {
+        border-color: #ff5722 !important;
+      }
+    }
+  }
+}
+
+.layui-error-message {
+  color: @error_color;
+  font-size: 12px;
+  line-height: 1;
+  padding-top: 2px;
+  position: absolute;
+  top: 100%;
+  left: 0;
+}
+
+.layui-error-message-anim {
+  -ms-transform-origin: 0 0;
+  -webkit-transform-origin: 0 0;
+  transform-origin: 0 0;
+  -webkit-animation: layui-top-show-anim 0.3s ease 1;
+  animation: layui-top-show-anim 0.3s ease 1;
+}
+
+@keyframes layui-top-show-anim {
+  0% {
+    opacity: 0.3;
+    transform: rotateX(45deg);
+  }
+
+  100% {
+    opacity: 1;
+    transform: rotateX(0);
+  }
+}