body {
    background-image:url(../Images/bg_pic/bg_intro.gif);
    /*background-color:blue;*/
}
.wellcome_photo 
{
width: 800px;
height: 450px;
background-image: url("../Images/bg_pic/vitrin_page.jpg");
background-repeat: no-repeat;
margin: 90px auto;
box-shadow: 0px 0px 37px black;
border-radius: 14px;
 
}
/*.inter_button {
width: 113px;
height: 31px;
font-size: 21px;
border-radius: 10px;
position: absolute;
right: 405px;
top: 553px;
}
 .inter_button:hover 
 {    
background-image: url("https://www.safi-e.ir/Images/inter.gif");
 }*/