I solved it and a post above has the right idea.
img, embed, object, video {
max-width: 100%;
}
/*********************************************************************************
MEDIA QUERIES
**********************************************************************************/
@media screen and (min-width: 981px)
{
#heading{
height:240px;
/ width:980px;/
background-size:100% 100%;
background-image:url(images/head7.png);
background-repeat:no-repeat;
}