#project { table { width: 315px; border: 1px solid #252529; font-size: 11px; color: #CFDBE5; background: #2E2E33; .pc-tip { color: #09f; } td, th { width: 99px; height: 44px; vertical-align: middle; text-align: center; } } thead { th { font-size: 15px; color: #CFDBE6; border-bottom: 1px solid #252529; &:nth-child(2) { border-left: 1px solid #252529; border-right: 1px solid #252529; } } } tbody { td { &:nth-child(2) { border-left: 1px solid #252529; border-right: 1px solid #252529; } } } }