.avia-section.av-mdjvoz3a-22318be33903416920aafd24769baf45{background-repeat:repeat;background-image:url(https://ged.pctu.edu.vn/wp-content/uploads/2025/07/ChatGPT-Image-Jul-9-2025-09_42_25-AM-300x300.png);background-position:50% 50%;background-attachment:scroll} #top .av-special-heading.av-mdjvo72m-a8e2e9b47a8bd56b0fed79a0948d9959{padding-bottom:10px;color:#ffffff}body .av-special-heading.av-mdjvo72m-a8e2e9b47a8bd56b0fed79a0948d9959 .av-special-heading-tag .heading-char{font-size:25px}.av-special-heading.av-mdjvo72m-a8e2e9b47a8bd56b0fed79a0948d9959 .special-heading-inner-border{border-color:#ffffff}.av-special-heading.av-mdjvo72m-a8e2e9b47a8bd56b0fed79a0948d9959 .av-subheading{font-size:15px}