#nh_biology{padding:45px 25px 70px}.nh_biology_con{min-height:300px}.bio_top_con{display:flex;gap:20px;justify-content:center;flex-wrap:wrap;align-items:center;text-align:center}.bio_top_con section{width:48%}.bio_top_con section h2{font-size:18px;font-weight:400}