template div class=dv div class=box h1嗨购后台管理系统h1 main el-form model=form rules=rules ref=ruleFormRef el-form-item prop=adminname

.dv{ display:flex; justify-content:center; align-items:center; height:100vh; } .box{ border:1px solid #ccc; width:30%; padding:20px; text-align:center; }

h1{ font-size:24px; margin-bottom:20px; }

main{ display:flex; flex-direction:column; align-items:center; }