.avatar-letra {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    /*font-size: 1rem;*/
    font-size: .85rem;
    flex-shrink: 0;
    background-color: #ccc; /* Fallback */
}

    .avatar-letra.large {
        width: 70px;
        height: 70px;
        font-size: 1.35rem;
    }

    .avatar-letra.medium {
        width: 50px;
        height: 50px;
        font-size: 1rem;
    }


.w-50 .avatar-letra,
.w-50 img {
    width: 50px;
    height: 50px;
}

.w-40 .avatar-letra,
.w-40 img {
    width: 40px;
    height: 40px;
}


.img-header {
    object-fit: cover;
    border-radius: 50px;
}