.content span{background-image:linear-gradient(#fff,#fff),linear-gradient(#fff,#fff),linear-gradient(hsla(0,0%,100%,.5),hsla(0,0%,100%,.5));background-size:300vmax 1lh,300vmax 1lh,100% 1lh;background-position-x:calc(-300vmax + var(--progress-text)*300vmax*1),calc(-300vmax + var(--progress-text)*300vmax*1),0}