修复遮罩层的显示问题

pages/index/index.css

@@ -509,7 +509,7 @@ page {
 	border-radius: 0 0 10rpx 10rpx;
 	box-shadow: 0 5rpx 15rpx rgba(0, 0, 0, 0.1);
 	padding: 20rpx;
-	/* position: absolute; */
+	position: absolute;
 	z-index: 99;
 	width: 95%;
 	left: 0;
@@ -570,7 +570,7 @@ page {
 
 .overlay {
 	position: absolute;
-	top: 0;
+	top: 90rpx;
 	left: 0;
 	width: 100%;
 	height: 100%;

pages/index/index.vue

@@ -184,6 +184,7 @@
         </view>
       </view> -->
       <div class="merchantList">
+        <view class="overlay" v-if="showDropdown"></view>
         <div class="merchantItem" v-for="item in merchatList" :key="item.id" @click="Info(item)">
           <div class="merchantItem_left">
             <image :src="item.showImg" mode="aspectFill"></image>