.detail-extend{ max-width: 984px; width: 100%; margin:0 auto; } .detail-extend .product_c{ margin:30px 0; } .detail-extend .product-title{ position: relative; border-bottom: 1px solid ddd; padding-bottom: 5px; text-align: center; font-family: Open Sans,Arial,Helvetica,sans-serif,Heiti; font-size: 20px; font-weight: bold; } .detail-extend .product-title:after{ content: ""; position: absolute; width: 60px; height: 3px; background: 000; bottom: -2px; left: 50%; margin-left: -30px; } .detail-extend img{ display: block; text-align: center; margin: 25px auto; } describe: * 100% new and high quality * Made of high quality material, durable and practical Specification: Product name: rubber arm guard Product color: black Product material: rubber material Product weight: 17g Product size: 15*7*1.5cm Package Included: 1*rubber arm guard notes: 1. Due to various factors such as monitor brightness and light brightness, the actual color of the product may be slightly different from the picture displayed on the website. 2. Please allow for slight manual measurement bias in the data.