Sidebar responsive css fix?

Hi Ron! I’ve got the same issue as mentioned in this topic, but I apply a left and a right sidebar for my widgets with the content in the middle. If I apply this css:

#content, .sidebar {
display: table-cell;
float: none !important;
vertical-align: top;
}

It brings both sidebars to the right. What would be the fix for my case?

Cheers