What attribute lets you control how the table gridlines are drawn?

The attribute that controls how the table gridlines are drawn is typically the "border" attribute in HTML or the CSS "border" property. In HTML, setting the border attribute on a <table> element specifies whether and how borders are displayed around the table and its cells. In CSS, you can further customize the appearance of gridlines using properties like "border-style," "border-width," and "border-color."