20 Free Custom CSS Radio Button Styles 2026 Browser default radio buttons are plain and inconsistent across operating systems. ProofMatcher has 20 free CSS radio button designs that replace the browser default with polished, animated alternatives. Custom CSS Radio Button .radio-wrap { display:flex; align-items:center; gap:10px; cursor:pointer; } .radio-wrap input { display:none; } .radio-circle { width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.25); border-radius: 50%; background: