Paste code

#content {
 width: 1000px;
 background-color: #1b1b1b;
      box-shadow: 0px 9px 12px #000;
 overflow: hidden;
 clear: both; 
 margin-left: 136px;
      margin-right: 126px;
 position: relative;
}
#content #srodek{
 width: 1000px;
 background: trasnparent;
 position: relative;
 margin-right: 118px;
 margin-bottom: 4px;
 clear: both;

} 
#srodek #ogloszenia{
 width: 277px;
 background: transparent;
 margin-top: 3px;
 float: left;
}
#content #lewa{
 width: 638px;
 padding-top: 3px;
 float: left;
 background: transparent;
  
}
 
#content #panele {
 width: 600px;
 margin-top: 5px;
 background: transparent;
 position: relative;

}
#content #gora {
 width: 1000px;
 position: relative;

}