采购合同查询：居中

src/views/PurchasingCenter/PurchaseContractSearch/index.vue

@@ -120,12 +120,11 @@
       </div>
     </el-card>
 
-    <el-card>
-      <div style="float: left">
+    <div style="margin:5px;float: left">
       <b>二维码：</b><br>
       <img id="img">
     </div>
-      <div style="width:900px;margin-left: 350px">
+    <div style="width:900px;margin: 0 auto">
       <el-card>
         <table id="1" cellspacing="0px" align="center" border width="100%" style="">
           <tr style="height: 40px">
@@ -172,7 +171,6 @@
         <div id="23"/>
       </el-card>
     </div>
-    </el-card>
 
     <el-card v-show="searchView">
       <!--将新一般处理页添加至通讯服务器-->