Responsive
Điều kiện để responsive : <meta name="viewport" content="width=device-width, initial-scale=1"> CSS responsive : @media (min-width: 768px) { .container { width: 750px; } } @media (min-width: 992px) { .container { width: 970px; } } @media (min-width: 1280px) { .container { width: 1250px; } } @media screen and (max-width: 1024px) { .side-left, .main { float: left; } .side-right { display: none; } .side-left { width: 25%; } .main { width: 75%; } .title-header1, .title-header2, .title-header3 { float: none; width: 100%; border: none; } } @media screen and (max-width: 800px) { .side-left { display: none; } .side-right { display: none; } .main { width: 100%; } } @media screen and (max-width: 720px) { .header .da-slid