.logo_piekielna_kuchnia {
    background: url("../images/logo-piekielna-kuchnia.png") no-repeat;
  }
  @media only screen and (max-width: 568px){
  .logo_piekielna_kuchnia {
      display: inline-block;
      float: left;
      width: 200px;
      height: 30px;
      background: url("../images/logo-piekielna-kuchnia-small.png") no-repeat;
      margin-top: 12px;
  }
}