.smooth-back-to-top-button { position: fixed; display: flex; align-items: center; justify-content: center; cursor: pointer; z-index: 10000; opacity: 0; visibility: hidden; transform: translateY(15px); transition: all 200ms linear; overflow: visible; } .smooth-back-to-top-button.active-progress { opacity: 1; visibility: visible; transform: translateY(0); } .smooth-back-to-top-button::after { top: 0; left: 0; z-index: 1; text-align: center; position: absolute; font-family: 'wpxpress'; transition: all 200ms linear; } .smooth-back-to-top-button svg path, .smooth-back-to-top-button svg rect { fill: none; } .smooth-back-to-top-button svg.progress-circle { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; } .smooth-back-to-top-button svg.progress-circle path, .smooth-back-to-top-button svg.progress-circle rect { box-sizing: border-box; transition: all 200ms linear; }