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改变主题,夜晚/白天
<!DOCTYPE html> <html> <head> <style> .main { display: grid; grid: auto auto / auto auto auto auto; grid-gap: 10px; background-color: black; padding: 10px; } .num { background-color: grey; text-align: center; color: white; padding: 10px 10px; font-size: 30px; } </style> </head> <body> <div class="main"> <div class="num">一</div> <div class="num">二</div> <div class="num">三</div> <div class="num">四</div> <div class="num">五</div> <div class="num">六</div> <div class="num">七</div> <div class="num">八</div> </div> </body> </html>