CSS Script for Multiple Columns Boxed Style

• Open the view in Sharepoint designer
• Locate the "List view tools" bar and select "Design".
• Click "Customize XSLT" then select "Customize entire view"

• Find this line of code

  xsl:when test="$Position mod 2 = 0"

  and update it as you need. For instance: If you need to display 4 columns instate of 2 then, replace the line of code by the following:

xsl:when test="$Position mod 4 = 0"