/* variables */ :root { --header-height: 3em; --right-col-width: 24em; } body { font-size: 14px; background-color: #ccc; } ::-webkit-scrollbar { width: 0px; background: transparent; } #app-container { width: 100%; flex-direction: column; justify-content: flex-start; position: relative; color: white; } header { position: fixed; width: 100%; height: var(--header-height); top: 0; left: 0; background-color: rgba(20,0,40,1); z-index: 10; } header h1 { font-size: 1.25em; font-weight: bold; color: #ddd; padding: .5em; } #main-content-container { width: 100%; flex-direction: row; position: relative; margin-top: var(--header-height); } .main-cols { flex-direction: column; justify-content: flex-start; position: relative; } .left-col { width: calc(100vw - var(--right-col-width)); } #video-container { width: 100%; height: auto; display: flex; flex-direction: column; justify-content: flex-start; align-items: center; } #video-container video { width: 100%; display: block; } #chat-container { position: fixed; z-index: 9; right: 0; height: 100%; width: var(--right-col-width); background-color: rgba(20,0,40,.5); height: calc(100vh - var(--header-height)) } #chat-input-container { position: absolute; bottom: 0; width: 100%; border-top: 1px solid #eee; padding: 1em; background-color: #334; } #chat-form { flex-direction: column; align-items: flex-end; margin-bottom: 0; } .no-chat .left-col { width: 100vw; } .no-chat .right-col { display: none; } @media screen and (max-width: 860px) { :root { --right-col-width: 20em; } #chat-container { width: var(--right-col-width); } .left-col { width: calc(100vw - var(--right-col-width)); } } @media screen and (max-width: 640px ) and (orientation: portrait) { #main-content-container { flex-direction: column; justify-content: space-between; height: calc(100vh - var(--header-height)); } .main-cols { width: 100vw; } .left-col { flex-direction: column; justify-content: stretch; } .right-col { overflow: hidden; } #info { display: none; overflow: auto; height: auto; } #chat-container { width: 100%; height: 100%; position: relative; height: auto; } .no-chat .left-col { height: 100%; } .no-chat .right-col { display: none; } .no-chat #info { display: block; } }