.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; }