fix: 修复 vue3-memory-leak 项目中引入 vue 文件报错的问题

examples/next-app/src/app/index.css

@@ -0,0 +1,68 @@
+.viewport {
+  position: relative;
+  height: 80vh;
+  overflow: hidden;
+}
+
+.graph-container *:focus {
+  outline: none;
+}
+
+.graph-container .rect {
+  width: 50px;
+  height: 50px;
+  background: #fff;
+  border: 2px solid #000;
+}
+
+.graph-container .circle {
+  width: 50px;
+  height: 50px;
+  background: #fff;
+  border: 2px solid #000;
+  border-radius: 50%;
+}
+
+.graph-container .uml-wrapper {
+  box-sizing: border-box;
+  width: 100%;
+  height: 100%;
+  background: rgb(255 242 204);
+  border: 1px solid rgb(214 182 86);
+  border-radius: 10px;
+}
+
+.graph-container .uml-head {
+  font-weight: bold;
+  font-size: 16px;
+  line-height: 30px;
+  text-align: center;
+}
+
+.graph-container .uml-body {
+  padding: 5px 10px;
+  font-size: 12px;
+  border-top: 1px solid rgb(214 182 86);
+  border-bottom: 1px solid rgb(214 182 86);
+}
+
+.graph-container .uml-footer {
+  padding: 5px 10px;
+  font-size: 14px;
+}
+
+/* 输入框字体大小和设置的大小保持一致，自动换行输入和展示保持一致 */
+
+.graph-container .lf-text-input {
+  font-size: 12px;
+}
+
+.graph-container .buttons {
+  position: absolute;
+  z-index: 1;
+}
+
+.graph-container .button-list {
+  display: flex;
+  align-items: center;
+}