@-webkit-keyframes Jump_fade_in__2hgGO{0%{opacity:0}to{opacity:100%}}@keyframes Jump_fade_in__2hgGO{0%{opacity:0}to{opacity:100%}}.Jump_jump__uiSpd{position:fixed;right:10px;bottom:10px}@-webkit-keyframes LessonVideo_fade_in__2yEqL{0%{opacity:0}to{opacity:100%}}@keyframes LessonVideo_fade_in__2yEqL{0%{opacity:0}to{opacity:100%}}.LessonVideo_videoArea__2TQL7{display:grid;grid-template-rows:auto auto;grid-template-columns:50px 1fr 50px;grid-template-areas:". topic ." "prev video next";grid-column-gap:10px;-webkit-column-gap:10px;-moz-column-gap:10px;column-gap:10px;margin:0 auto}@media(max-width:600px){.LessonVideo_videoArea__2TQL7{grid-template-columns:1fr 1fr;grid-template-rows:auto auto auto;grid-template-areas:"topic topic" "video video" "prev next"}.LessonVideo_arrowLeft__26kcX,.LessonVideo_arrowRight__3o44e{padding:0}}.LessonVideo_topicLink__3aw5l{grid-area:topic;place-self:start start;color:#fff;font-size:20px;font-family:Poppins,sans-serif;text-decoration:none;-webkit-transition:none;transition:none}.LessonVideo_topicLink__3aw5l i{margin-right:16px}.LessonVideo_topicLink__3aw5l:focus,.LessonVideo_topicLink__3aw5l:hover{color:#64b5f6}.LessonVideo_topicLink__3aw5l:active{color:#2196f3}.LessonVideo_expandButton__gxlUa{grid-area:topic;font-size:20px;width:25px;color:#fff;margin-left:auto;margin-right:0}.LessonVideo_expandButton__gxlUa:hover{font-size:22px;color:#64b5f6}.LessonVideo_arrowLeft__26kcX,.LessonVideo_arrowRight__3o44e{padding:20px;text-decoration:none;color:#fff;font-size:36px;-webkit-transition:none;transition:none}.LessonVideo_arrowLeft__26kcX:focus,.LessonVideo_arrowLeft__26kcX:hover,.LessonVideo_arrowRight__3o44e:focus,.LessonVideo_arrowRight__3o44e:hover{color:#64b5f6;font-size:40px}.LessonVideo_arrowLeft__26kcX:active,.LessonVideo_arrowRight__3o44e:active{color:#2196f3}.LessonVideo_arrowLeft__26kcX{place-self:center end;grid-area:prev}.LessonVideo_arrowRight__3o44e{place-self:center start;grid-area:next}.LessonVideo_video__1lr96{grid-area:video;margin-top:20px}.LessonVideo_coverButton__39aba{position:relative;background:#000}.LessonVideo_coverPlayButton__2YFYv{position:absolute;width:5%;min-width:40px;height:auto;top:50%;left:50%;-webkit-transform:translate(-50%,-50%);transform:translate(-50%,-50%);color:rgba(33,33,33,.8);-webkit-transition:color .1s ease-in-out;transition:color .1s ease-in-out}.LessonVideo_coverButton__39aba:hover .LessonVideo_coverPlayButton__2YFYv,.LessonVideo_coverPlayButton__2YFYv:active .LessonVideo_coverPlayButton__2YFYv{color:red}.LessonVideo_frame__Xt2hz{width:100%;position:relative;padding-bottom:56.25%}.LessonVideo_iframe__Irlsk{position:absolute;top:0;left:0;width:100%;height:100%;border:0;z-index:10}.LessonVideo_bottomSpacer__2vIML{height:65px}@-webkit-keyframes TableOfContents_fade_in__1RlK3{0%{opacity:0}to{opacity:100%}}@keyframes TableOfContents_fade_in__1RlK3{0%{opacity:0}to{opacity:100%}}.TableOfContents_panel__1xRK-{position:fixed;display:-webkit-flex;display:flex;-webkit-flex-direction:column;flex-direction:column;left:0;top:0;bottom:0;width:300px;max-width:-webkit-calc(100vw - 60px);max-width:calc(100vw - 60px);font-family:Poppins,sans-serif;background:#fff;-webkit-box-shadow:0 0 5px rgba(0,0,0,.12549019607843137);box-shadow:0 0 5px rgba(0,0,0,.12549019607843137);z-index:10;-webkit-transition:opacity .2s ease,-webkit-transform .2s ease;transition:opacity .2s ease,-webkit-transform .2s ease;transition:transform .2s ease,opacity .2s ease;transition:transform .2s ease,opacity .2s ease,-webkit-transform .2s ease}.TableOfContents_panel__1xRK-[data-open=false]{-webkit-transform:translateX(-webkit-calc(-100% - 1px));transform:translateX(calc(-100% - 1px))}.TableOfContents_heading__3XkJP{display:-webkit-flex;display:flex;-webkit-align-items:center;align-items:center;margin-bottom:20px}.TableOfContents_heading__3XkJP>span{-webkit-flex-grow:1;flex-grow:1;padding-left:20px}.TableOfContents_heading__3XkJP>button{position:relative;margin:0;left:0}.TableOfContents_panel__1xRK-[data-open=false] .TableOfContents_heading__3XkJP button{left:50px}.TableOfContents_list__24GOP{-webkit-flex-grow:1;flex-grow:1;overflow-y:auto}.TableOfContents_link__2-0j3{display:block;padding:14px 20px;min-height:50px;text-decoration:none;font-size:.9rem}.TableOfContents_link__2-0j3:hover{background:#b3e5fc}.TableOfContents_link__2-0j3[data-active=true]{background:#f5f5f5}.TableOfContents_link__2-0j3[data-level="1"]{padding-left:20px}.TableOfContents_link__2-0j3[data-level="2"]{padding-left:30px}.TableOfContents_link__2-0j3[data-level="3"]{padding-left:40px}.TableOfContents_link__2-0j3[data-level="4"]{padding-left:50px}.TableOfContents_overlay__3ZtuL{background:rgba(0,0,0,.5019607843137255);position:fixed;left:0;top:0;right:0;bottom:0;opacity:0;pointer-events:none;-webkit-transition:opacity .2s ease;transition:opacity .2s ease}.TableOfContents_overlay__3ZtuL[data-show=true]{opacity:1;pointer-events:unset}