#lesson_wrapping .lesson-top-section{background:linear-gradient(0deg,#f7f8f8 18.6%,#fdfdfd 81.4%)}#lesson_media .arvanplayer .video-js,#lesson_media .arvanplayer .video-js .vjs-poster,#lesson_media .arvanplayer .video-js .vjs-tech{border-radius:.75rem}.skeleton{animation:loading 1.5s infinite;background-size:200% 100%;background:linear-gradient(90deg,#f0bb0b 25%,#ddd 50%,#f0bb0b 75%);border-radius:10px;height:444px;width:100%}@keyframes loading{0%{background-position:100% 0}to{background-position:-100% 0}}