@font-face {   font-family: 'wpxpress';   src:  url('https://rkt.pl/addons/smooth-back-to-top-button/assets/fonts/wpxpress.eot?9zg56');   src:  url('https://rkt.pl/addons/smooth-back-to-top-button/assets/fonts/wpxpress.eot?9zg56#iefix') format('embedded-opentype'),     url('https://rkt.pl/addons/smooth-back-to-top-button/assets/fonts/wpxpress.ttf?9zg56') format('truetype'),     url('https://rkt.pl/addons/smooth-back-to-top-button/assets/fonts/wpxpress.woff?9zg56') format('woff'),     url('https://rkt.pl/addons/smooth-back-to-top-button/assets/fonts/wpxpress.svg?9zg56#wpxpress') format('svg');   font-weight: normal;   font-style: normal;   font-display: block; }  [class^="wpx-icon-"], [class*=" wpx-icon-"] {   /* use !important to prevent issues with browser extensions that change fonts */   font-family: 'wpxpress' !important;   speak: none;   font-style: normal;   font-weight: normal;   font-variant: normal;   text-transform: none;   line-height: 1;    /* Better Font Rendering =========== */   -webkit-font-smoothing: antialiased;   -moz-osx-font-smoothing: grayscale; }  .wpx-icon-arrow-up-light:before {   content: "\e900"; } .wpx-icon-arrow-up-bold:before {   content: "\e911"; } .wpx-icon-angle-double-up:before {   content: "\e90a"; } .wpx-icon-angle-up:before {   content: "\e90c"; } .wpx-icon-arrow-up-black:before {   content: "\e908"; } .wpx-icon-finger-up:before {   content: "\e904"; } .wpx-icon-finger-up-o:before {   content: "\e905"; }