添加鼠标移上去有提示词

src/components/pages/classroomObservation/index.vue

@@ -61,18 +61,24 @@
 				</div>
 				<div class="co-h2-r-btn2" @click.stop="preview()">
 					<!-- <span class="co-h2-r-b-icon2"></span> -->
-					<img
+					<el-tooltip class="item" effect="light" content="预览" placement="top">
+						<img
 						src="../../../assets/icon/classroomObservation/Syan.png"
 						alt=""
 					/>
+    			</el-tooltip>
+					
 					<!-- <div>预览</div> -->
 				</div>
 				<div class="co-h2-r-btn2" @click.stop="shareBtn">
 					<!-- <span class="co-h2-r-b-icon3"></span> -->
-					<img
+					<el-tooltip class="item" effect="light" content="分享" placement="top">
+						<img
 						src="../../../assets/icon/classroomObservation/daoChu.png"
 						alt=""
 					/>
+    </el-tooltip>
+					
 					<!-- <div>分享</div> -->
 				</div>
 			</div>