Arrow maybe, but the spaces around it are there for a reason - numbers aren't the only valid values: https://developer.mozilla.org/en-US/docs/Web/CSS/grid-colu

Arrow maybe, but the spaces around it are there for a reason - numbers aren't the only valid values: https://developer.mozilla.org/en-US/docs/Web/CSS/grid-column#syntax https://developer.mozilla.org/en-US/docs/Web/CSS/grid-column... Because of how spaces are already used to separate values in CSS (not to mention our own regular intuition when dashes are involved), this: grid-column: 4 somegridarea / 6; grid-column: span 3 / 6; grid-column: span somegridarea / span someothergridarea; is much better than these: grid-column: 4 somegridarea-6; grid-column: span 3-6; grid-column: span 3->6; grid-column: span somegridarea-span someothergridarea; grid-column: span somegridarea->span someothergridarea;