hello mister and madam,

sorry in advanced, i ask you all here,

I tried opening this site to see the Sticky/rigid column, but in the Opera One browser the scroll below it doesn't appear. Why is this and what is the solution so that the horizontal scroll sign below is active and appeared? for this link = https://www.ag-grid.com/javascript-data-grid/column-pinning ?OPERA-ONE.png MICROSOFT-EDGE.png CHROME.png

thank you so much for reply me and help me?