.body{width:100vw; margin:0; background:#ffefd5; font-family:'Times New Roman';}
    .thanhcongcu{width:100%; height:2vw; text-align: center; padding: 1vw; font-size:130%; font-weight:800; color:yellow; background:#7a4b23; position:fixed; top:0px; z-index:4;}
    .home{width:4%; height:4vw; background:none; position:fixed; left:0px; top:0px; z-index:5;}
    .menu{width:4%; height:4vw; background:none; position:fixed; right:0px; top:0px; z-index:5;}
    .noidung{font-size:150%; margin:2%; font-weight:600;}
    .a{text-decoration:none;}
    @media (max-width: 1000px){
    .thanhcongcu{width:100%; height:6vw; padding: 1vw; font-size:130%; font-weight:800; color:yellow; background:#7a4b23; position:fixed; top:0px; z-index:4;}
    .home{width:10%; height:10vw; background:none; position:fixed; left:0px; top:0px; z-index:5;}
    .menu{width:10%; height:10vw; background:none; position:fixed; right:0px; top:0px; z-index:5;}
    .noidung{font-size:150%; margin:2%;}
    .chunho{text-decoration:none; border:2px solid #7a4b23; border-radius: 10px; background:gold;}
    .a{text-decoration:none;}
}