<style> #my-landing-page-header { width: 100%; font-size: 20px; padding: 0px 0px; color: #000 } #main-wrapper #main { margin-right: 0%!important; } #main-wrapper { border-right: none; width:100% !important; } div.phu-kien { width: 25%; float: left; margin-bottom:20px; } div.phu-kien h2{ font-family:arial; font-size: 16px; color:black; } div.phu-kien h2 a{ font-weight: 700; } @media screen and