Hi DD,
To eliminate the blue line in drop down menu Go to Appearance -> Theme Options -> Design Options Tab -> Custom CSS paste the following CSS code and Click on save all changes button:
#access ul li ul {
border-top: 0 none;
}
Or If you just want to change the color of blue line in drop down menu then just paste the following CSS code.
#access ul li ul {
border-color: #05A9C5;
}
Note: Change above color code 05A9C5 to your own Hex color code to change the color of the blue line in the drop down menu.
Thank you for using our theme.