XPATH starts with
//a[starts-with(@class,'orange-button')]

CSS starts with
a[class^='orange-button']   

CSS End with
a[class$='Advantage-Plus']   

XPATH End with String
//a[substring(@class,string-length(@class) - string-length('Advantage-Plus')+ 1)=('Advantage-Plus')]

Xpath Middle of string
//ul[contains(concat(' ',@class,''),'dropShadow')]
CSS
ul[class~='dropShadow']

//div[@id='about-membership-wrapper']/div[1][@class='about-membership-cards']/div[1][@class='about-membership-card']/a[starts-with(@class,'orange-button')]   


div[class='about-membership-card'],a[class*='orange-button']