python+django+vue电影票订购系统dyvv4

1、如下图所示，在给元素设置边框后，相邻元素会出现重合的问题

2、解决方案

 <div style="width: 300px;display: flex;flex-wrap: wrap;margin-top: 50px;">
   <div style="border: 1px solid red;height: 100px;width: 300px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
   <div style="border: 1px solid red;height: 100px;width: 100px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
   <div style="border: 1px solid red;height: 100px;width: 100px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
   <div style="border: 1px solid red;height: 100px;width: 100px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
   <div style="border: 1px solid red;height: 100px;width: 100px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
   <div style="border: 1px solid red;height: 100px;width: 100px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
 </div>

3、但是如上图所示，又会导致出现每个模块合起来后实际并未占满整个空间

<div style="width: 300px;display: flex;flex-wrap: wrap;margin-top: 50px;">
	<div style="border: 1px solid red;height: 100px;width: 300px;box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
	<div style="border: 1px solid red;height: 100px;width: calc(100px + 1px * 2 / 3);box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
	<div style="border: 1px solid red;height: 100px;width: calc(100px + 1px * 2 / 3);box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
	<div style="border: 1px solid red;height: 100px;width: calc(100px + 1px * 2 / 3);box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
	<div style="border: 1px solid red;height: 100px;width: calc(100px + 1px * 2 / 3);box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
	<div style="border: 1px solid red;height: 100px;width: calc(100px + 1px * 2 / 3);box-sizing: border-box;margin-top: -1px;margin-left: -1px;"></div>
</div>