.video-box[data-v-18f02ddc]{position:relative;padding-bottom:56.25%;padding-top:0;height:0;overflow:hidden}.video-box iframe[data-v-18f02ddc]{position:absolute;top:0;left:0;width:100%;height:100%}.platform-buy-buttons .dfrobot[data-v-18f02ddc]{background-size:contain;background-image:url(https://www.dfrobot.com.cn/themes/dfcn_v3/images/logo.png);background-position-y:35%}#htmlShowBox[data-v-18f02ddc]{text-align:left;padding:20px}#htmlShowBox h3[data-v-18f02ddc]{font-size:20px;position:relative;color:#e16811;margin:10px 0;overflow:hidden;height:30px;line-height:30px}#htmlShowBox h3[data-v-18f02ddc]:before{content:"";position:absolute;top:13px;background:#fff;width:48px;height:2px;left:98%;z-index:10}#htmlShowBox h3[data-v-18f02ddc]:after{content:"";position:absolute;top:15px;background:#e16811;width:600px;height:2px;margin-left:20px}#htmlShowBox img[data-v-18f02ddc]{margin-top:16px;margin-bottom:16px}#htmlShowBox ul[data-v-18f02ddc]{top:17px;font-size:14px;padding-left:20px}#htmlShowBox ul li[data-v-18f02ddc]{line-height:30px;list-style:disc;margin-left:20px}#htmlShowBox a[data-v-18f02ddc]{color:#e16811}