*,*:before,*:after{box-sizing:border-box}html,body{margin:0;padding:0}body{min-height:100vh;-webkit-font-smoothing:antialiased}img{max-width:100%}.btn-spinner{display:inline-block;width:14px;height:14px;margin-right:8px;vertical-align:-2px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:btn-spin .7s linear infinite}@keyframes btn-spin{to{transform:rotate(360deg)}}