@media only screen and (min-width:600px){.container_r{display:flex;flex-wrap:wrap}.container_r div{flex:1 1 50%}.container_r div{box-sizing:border-box}.column_sekcja2{padding:20px 100px 20px 30px;width:50%}.column2_sekcja2{padding:20px 200px;width:50%}.row:after{clear:both;content:"";display:table}}@media only screen and (max-width:600px){.column2_sekcja2{padding-left:20px;padding-right:20px;visibility:hidden}#Middle{display:none}.column_sekcja2{padding-left:30px;padding-right:30px}.row:after{clear:both;content:"";display:table}.pad{padding-left:10px;padding-right:10px}}#Middle{height:1300px}#scrolling-section{float:center;position:relative}