.indextitreBtn {
    font-weight: bold;
}

    .indextitreBtn:hover {
        background-color: #EA0637 !important;
        color: white !important;
    }

.indexSelected, .lettreSelected {
    text-decoration: underline;
}

#IndexKeysContainer {
    margin: 0 15%;
    flex-direction: row;
    align-items: flex-start !important;
}

.IndexKeysColumn {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    width: 50%;
    box-sizing: border-box;
    flex-shrink: 0;
    flex-grow: 0;
}

    .IndexKeysColumn:last-of-type {
        padding-left: 0.5vw;
    }

.lettreBtn {
    border-radius: 50%;
    height: 2.5rem;
    width: 2.5rem;
    padding: 0;
    box-sizing: border-box;
    line-height: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#LettresContainer1, #LettresContainer2 {
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    margin: 0 15%;
}

@media (orientation:portrait) {
    #IndexKeysContainer, #LettresContainer1, #LettresContainer2 {
        margin: 0;
    }
}