#app-frame.pronunciation.letter_r .nav-tabs{text-align:center}#app-frame.pronunciation.letter_r .nav-tabs li{float:none;display:inline-block}#app-frame.pronunciation.letter_r .nav-tabs li a{font-size:16px;border-top-left-radius:0px !important;border-top-right-radius:0px !important;border-bottom-left-radius:4px !important;border-bottom-right-radius:4px !important}#app-frame.pronunciation.letter_r .nav-tabs li.active a{background-color:#43bd6b}#app-frame.pronunciation.letter_r .nav-tabs li:not(.active) a{background-color:#0b82c5;color:white  !important}#app-frame.pronunciation.letter_r .tab-content{flex:1}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container{height:48vh;margin-top:2vh;text-align:center}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container .video-player-container{display:inline-block;width:50%;height:48vh;padding-left:5px;padding-right:5px}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container .left-panel{float:left}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container .right-panel{float:right}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container video{position:relative;display:inline-block;width:100%;height:100%}#app-frame.pronunciation.letter_r .tab-content #warmup-video-container #warmup-camera-player{transform:scale(-1, 1)}#app-frame.pronunciation.letter_r .tab-content #exercise-image-container{height:50vh;text-align:center}#app-frame.pronunciation.letter_r .tab-content #exercise-image-container div{height:46vh;width:80%;line-height:8vh;display:inline-block;padding:0 0;margin:2vh}#app-frame.pronunciation.letter_r .tab-content #exercise-image-container div #exercise-image{width:100%;height:100%;display:inline-block !important;background-size:contain !important;background-repeat:no-repeat !important;background-position:center !important}#app-frame.pronunciation.letter_r .tab-content .text-container{height:12vmin;margin-top:1min;text-align:center;line-height:6vmin;font-size:4vmin}#app-frame.pronunciation.letter_r .control-container{position:relative;bottom:0px;text-align:center}#app-frame.pronunciation.letter_r .control-container button{display:inline-block;line-height:6vmin;font-size:3vmin;margin:1vmin;padding-left:2vmin;padding-right:2vmin}