.product-description{         font-family:'Segoe UI', Roboto, Helvetica, Arial, sans-serif;         color:#333;         line-height:1.6;         margin:0;         padding:0;         background-color:#fff;         font-size:16px;     }     .features{list-style:none;padding:0;}     .features li{margin:6px 0;position:relative;padding-left:20px;}     .features li:before{content:"✓";position:absolute;left:0;color:#28a745;font-weight:bold;}