#mybtt button::after{background-color:#1D1D1B;display:inline-block;z-index:-1;position:absolute;top:-360px;left:-600px;width:600px;height:600px;border-radius:100%;transition:300ms linear}#mybtt button::after{content:''}#mybtt:hover button::after{transition:var(--bde-transition-duration);transform:translateX(200px)}#mybtt2 button::after{background-color:var(--bde-palette-color-4);display:inline-block;z-index:-1;position:absolute;top:-360px;left:-600px;width:600px;height:600px;border-radius:100%;transition:300ms linear}#mybtt2 button::after{content:''}#mybtt2:hover button::after{transform:translateX(300px)}