.ck-content h2 {
        color:red;
}

.ck-content h3 {
        color:green;
}

.ck-content h4 {
        color:blue;
}

.ck-content li {
    width:auto;
    display:block;
}

.ck.ck-button, a.ck.ck-button {
        color:black;
        background-color:#006BE1;
}

.ck.ck-button .ck-button__label {
        color:white;
        background-color:#006BE1;
}