How to change button text colour without affecting one button

Site URL: https://www.charliefollows.com

Hi I need to change the button text colour to white so that it stands out more, however this also changes the main button on my front page which has a white background so the text is invisible. How can I change the button text colour without affecting that homepage button? 

16 hours ago, Carfol said:

Site URL: https://www.charliefollows.com

Hi I need to change the button text colour to white so that it stands out more, however this also changes the main button on my front page which has a white background so the text is invisible. How can I change the button text colour without affecting that homepage button? 

Change Practice with me only or which buttons?

Add to Design > Custom CSS

/* practice with me button */
div#block-yui_3_17_2_1_1623847877624_10226 a {
    color: white !important;
}

Thank you this worked perfectly 🙂