Unable to Display Image through CSS( Theme Builder)

 I am including css through theme Builder but css is not able to show the image which i want to display through css . also i don't kwow where to put the image folder

.battonlinktext1 {
    color:#FFFFFF;
    text-align:center;
    padding-top:10px;
    background:url(../images/Home_btn1.gif);
}

This is my css which i included in my site but unable to display the images also where should i put the image folder ....please help me...