معاون پژوهشی
html { box-sizing: border-box; } *, *:before, *:after { box-sizing: inherit; } .column { float: left; width: 50%; margin-bottom: 16px; padding: 0 8px; } @media screen and (max-width: 900px) { .column { width: 100%; ...
html { box-sizing: border-box; } *, *:before, *:after { box-sizing: inherit; } .column { float: left; width: 50%; margin-bottom: 16px; padding: 0 8px; } @media screen and (max-width: 900px) { .column { width: 100%; ...