修改统计图大小

src/views/stat/voucher/index.vue

@@ -31,7 +31,7 @@
         </el-card>
       </el-col>
 
-      <el-col :span="12" class="card-box">
+      <el-col :span="8" class="card-box">
         <el-card>
           <div slot="header"><span>代金券发放比例</span></div>
           <div class="el-table el-table--enable-row-hover el-table--medium">
@@ -39,7 +39,7 @@
           </div>
         </el-card>
       </el-col>
-      <el-col :span="12" class="card-box">
+      <el-col :span="16" class="card-box">
         <el-card>
           <div slot="header">
             <span>代金券发放数</span>