@charset "utf-8";
/* CSS Document */


.img_block{
position: fixed;
  
   
   width: 1000px;  
   height: 400px; 
   left: 50%;  
   top: 50%;  
    
}
.img_block img{
margin: 10px;
    
}
.back
{
 position: fixed;
  top: 0px;
  left: 0px;
  
  z-index: 100;
  
  background-color:#000;
height:100%;
width:100%;



}

.block{
 position: absolute;  

}