#lesson-note-view {
    position: relative;
    background-color:#525659;
    
    #view-exercise {
        width: 60%;
        margin: 10px 0;
    }

    #close-note-view {
        position: absolute;
        top: 8px;
        left: 8px;

        cursor: pointer;
        
        font-size: 20px;
        border-radius: 50%;
        font-size: 25px;
        color: white;
        z-index: 99999;
    
        &:hover {
            color: #3498db;
        }
    }

    height: 100%;

    #lesson-note-container {
        height: ~"calc(100% - 61px )";
    }

}