.list_img{margin: 2px 5px;}
.tsh{background: none repeat scroll 0 0 #000000;
border-radius: 10px;
color: #FFFFFF;
padding: 5px;
text-align: center;}
.ct{}
.br{background: none repeat scroll 0 0 #fff;
border-radius: 5px;
color: #000000;
font-weight: normal;
padding: 5px;
width: 1000px;
}

 #xyz {height:1000px;}







.logo_area{background:url(img/big.png) no-repeat scroll 0 0;width:666px;height:341px;margin: 0 auto;}
/* Tablet Layout: 768px. */

@media only screen and (min-width: 768px) and (max-width: 991px) {
.logo_area{background:url(img/big.png) no-repeat scroll 0 0;width:666px;height:341px;margin: 0 auto;}
}


/* Wide Mobile Layout: 480px. */

@media only screen and (min-width: 480px) and (max-width: 767px) {

.logo_area{background:url(img/medium.png) no-repeat scroll 0 0;width:515px;height:264px;margin: 0 auto;}
}

/* Mobile Layout: 320px. */

@media only screen and (max-width: 479px) {
.logo_area{background:url(img/small.png) no-repeat scroll 0 0;width:322px;height:165px;margin: 0 auto;}
  #xyz {height:1500px}
  
}