If you mean the columns on the left size, their ‘size’ property determines the columns size. You can set it to number or string in order to add the ‘px’ or ‘%’.
thanks for the response, no, I mean the cell on the rigth that represent the day for the task element from DateStart to DateEnd. If it’s possible to have a smaller size for have on display more task visible.
This can be configured by using a CSS variable – –smart-gantt-chart-timeline-cell-size. Set it to the smart-gantt-chart element in the CSS and it will redefine the width.