.skilltree-shell.element-fire .skill-icon{background-image:url('../images/elements/fire.webp')}.skilltree-shell.element-water .skill-icon{background-image:url('../images/elements/water.webp')}.skilltree-shell.element-earth .skill-icon{background-image:url('../images/elements/earth.webp')}.skilltree-shell.element-air .skill-icon{background-image:url('../images/elements/air.webp')}.skilltree-shell[class*=" element-"] .skill-icon{background-size:300% 500%;background-position:var(--icon-x) var(--icon-y)}