button.titles {
    background:none; border:none;
    cursor: pointer;
    text-align: left;
    padding: 0;
    margin: 0;
}
.titles{
    font-size: 20px;
    text-decoration: underline;
}
button.word {
    background:none; border:none;
    cursor: pointer;
    text-align: left;
    padding: 0;
    margin: 0;
}
.word{
    font-family: Arial, Helvetica, sans-serif;
    text-decoration: underline;
    font-size: medium;
}