title: Custom Style to slider
body: <p>I have a slider, below is the image on how it looks.</p>
  
  <p><img src="https://i.stack.imgur.com/43GNZ.jpg" alt="enter image description here"></p>
  
  <p>I have a white background, because of the white background the button of the slider is not visible at all, so how to change the style of that?</p>
  
  <p>I have searched for it but didn't find proper help.</p>