.grid-container{margin-left:auto;margin-right:auto;border:none;padding:0}.background-image{position:absolute;z-index:0;display:none}.grid-canvas{position:absolute;z-index:1}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}