Internal Server Error and (min-device-width : 375px) and (max-device-width : 667px) { .col-md-3, .col-md-9 { width: 100%; } } /* Exception Info */ .exception { margin-top: 20px; } .exception .message{ padding: 12px; border: 1px solid #ddd; border-bottom: 0 none; line-height: 18px; font-size:16px; border-top-left-radius: 4px; bo-为API开发设计的高性能框架 }