<div className="col-lg-6 row-item">
   <div className="file-upload-arrow">
     <img src={FileArrowIcon} alt="File Upload Arrow Icon" />
   </div>
   <div className="file-upload-text">
     Drag and drop document here to upload
   </div>
   <div className="file-attach-instructions">
     Please attach the file(s) below (use the Add button). We recommend using A4-size PDF, BMP, PNG, DOC, DOCX, JPG and JPEG files. File size cannot be more than 20 megabytes (MB). Your files will be uploaded when you submit your form.
   </div>
   <div className="file-add-button">
     <button>Add File</button>
   </div>
 </div>
 
 
 Consider you are a CSS expert. Above is the code you have to update and make neccessary styling based on below constraints
 
 Constraints:
 
 1. Center the child elements of row-item div element horizonatally & vertically.
 2. Each child element is aligned center.
 3. Update backgournd of Add File button to #023979.
 4. Set border radious of button to 5px and font color to #FFFFFF.
 5. Fibnally return the updated version of code with change in styles.