static/styles.css

.user-message {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin: 10px 0;
    color: white;
}

.user-message .stMarkdown {
    background-color: #3d92c4;
    border-radius: 15px;
    padding: 10px;
    max-width: 70%;
    word-wrap: break-word;
}

.user-avatar {
    order: 2;
    margin-left: 10px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
}

.assistant-message {
    display: flex;
    align-items: center;
    margin: 10px 0;
}

.assistant-message .stMarkdown {
    background-color: #D9D9D9;
    border-radius: 15px;
    padding: 10px;
    max-width: 70%;
    word-wrap: break-word;
}

.assistant-avatar {
    margin-right: 10px;
    width: 38px;
    height: 38px;
    border-radius: 50%;
}