Please help me write the css style as shown in the picture, thank you_html/css_WEB-ITnose

Please help me write the css style as shown in the picture. The position is in the center of the page. The size of the button is: 190px*50px. The colors are orange (#FF7100) and white (#FFFFFF). When the mouse is clicked, the styles of the two are swapped.
Please help write it down.
Thank you.

Reply to the discussion (solution)

jquery's addClass, removeClass; the two methods are very simple

jquery's addClass, removeClass; the two methods are very simple

Add click events for the two buttons btn1 and btn2

$('#btn1').click(function(){$(this).addClass('class1');$('#btn2').addClass('class2');})