两个相邻的div边框合并
Document
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
网格项1
网格项2
网格项3
================ 代码如下
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> <style> .grid-contaniner{ display: flex; flex-direction: row; flex-wrap: wrap; } .grid-item{ width:120px; border:solid 1px red; margin: -1px 0 0 -1px; } </style> </head> <body> <div class="grid-contaniner"> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> <div class="grid-item">网格项1</div> <div class="grid-item">网格项2</div> <div class="grid-item">网格项3</div> </div> </body> </html>