.custom-button { display: inline-flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; line-height: 1.1; padding: 14px 18px; } .custom-button .line-1 { font-size: 14px; letter-spacing: 0.08em; } .custom-button .line-2 { font-size: 12px; opacity: 0.7; margin-top: 2px; }