.signin – button {outline: none; border: none; cursor: pointer; width: 100%; height: 60px; border – radius: 30px; font – size: 20px; font – weight: 700; font – family: Arial, Helvetica, sans color: #fff; text – align: center; background – color: # 02c8db; box – shadow: 3px 3px 8px #blblbl, -3px -3px 8px #fff; transition: all 0.5s; } serif;