烦烦: 考试 * { margin: 0px; padding: 0px; list-style: none; } .bigbox { width: 1200px; margin: 0 auto; margin-bottom: 100px; } h2 { text-align: center; margin-top: 50px; font-weight: 300; } h4 { text-align: center; color: #787F87; font-weight: 500; font-size: 14PX; } h5 { margin-top: 10px; color: #929090; text-align: center; } .heard { margin-top: 40px; height: 30px; width: 100%; }