after following @Robert 's suggestion I figured out that the code
.page-title, .product-view .product-essential .product-name{
background-image: url('../images/background-title.jpg');
background-repeat: no-repeat;
background-size: cover;
box-shadow: inset 0px 0px 30px 0px #999;
-webkit-box-shadow: inset 0px 0px 30px 0px #999;
-moz-box-shadow: inset 0px 0px 30px 0px #999;
-o-box-shadow: inset 0px 0px 30px 0px #999;
border-bottom: none;
}
was the one giving that problem. after commenting this everything looks to be fine.. not sure what is wrong with this though.