.cutstring-3-character {
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    width: 25px; 
}

/*C# 교과서 학습 가이드 - 제목*/
.seesharp-guide-title {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #808080;
    color: whitesmoke;
    height: 100px;
    font-size: 25px;
    /*margin-bottom: 15px;*/
}