@media only screen and (max-width:1024px) {
    .container{width: 100%}
    #header{height: 60px}
    #tintuc{width: 100%;float: none;margin-bottom: 10px}
    #chinhsach{width: 100%;float: none;margin-bottom: 10px}
    #dvuhotro{width: 100%;float: none;margin-bottom: 10px}
    #yeuthich{width: 100%;float: none}
    #gioithieu{width: 100%;float: none;margin-bottom: 10px}
    #thacmac{width: 100%;float: none;margin-bottom: 10px}
    #thanhtoan{width: 100%;float: none;margin-bottom: 10px}
    #lket{width: 100%;float: none}
    .boxright aside{width: 100%;float: none}
    .boxright.picture img{width: 100%;float: none}
}
@media only screen and (min-width:768px) and (max-width:989px) {
    .container{width: 100%}
    #header{height: 60px}
    #tintuc{width: 100%;float: none;margin-bottom: 10px}
    #chinhsach{width: 100%;float: none;margin-bottom: 10px}
    #dvuhotro{width: 100%;float: none;margin-bottom: 10px}
    #yeuthich{width: 100%;float: none}
    #gioithieu{width: 100%;float: none;margin-bottom: 10px}
    #thacmac{width: 100%;float: none;margin-bottom: 10px}
    #thanhtoan{width: 100%;float: none;margin-bottom: 10px}
    #lket{width: 100%;float: none}
    .boxright aside{width: 100%;float: none}
    .boxright.picture img{width: 100%;float: none}
}

@media only screen and (min-width:480px) and (max-width:767px){
    .container{width: 100%}
    #header{height: 60px}
    #tintuc{width: 100%;float: none;margin-bottom: 10px}
    #chinhsach{width: 100%;float: none;margin-bottom: 10px}
    #dvuhotro{width: 100%;float: none;margin-bottom: 10px}
    #yeuthich{width: 100%;float: none}
    #gioithieu{width: 100%;float: none;margin-bottom: 10px}
    #thacmac{width: 100%;float: none;margin-bottom: 10px}
    #thanhtoan{width: 100%;float: none;margin-bottom: 10px}
    #lket{width: 100%;float: none}
    .boxright aside{width: 100%;float: none}
    .boxright.picture img{width: 100%;float: none}
}
@media only screen and (max-width:479px){
    .container{width: 100%}
    #header{height: 60px}
    #tintuc{width: 100%;float: none;margin-bottom: 10px}
    #chinhsach{width: 100%;float: none;margin-bottom: 10px}
    #dvuhotro{width: 100%;float: none;margin-bottom: 10px}
    #yeuthich{width: 100%;float: none}
    #gioithieu{width: 100%;float: none;margin-bottom: 10px}
    #thacmac{width: 100%;float: none;margin-bottom: 10px}
    #thanhtoan{width: 100%;float: none;margin-bottom: 10px}
    #lket{width: 100%;float: none}
    .boxright aside{width: 100%;float: none}
    .boxright.picture img{width: 100%;float: none}
}
.navbar-default{z-index: 5}
#header nav{background-color: #2ea98f;  }
#header nav a{color: black;  }
#header nav a:hover{color: black}
#header .dropdown-menu a{color: black;  }
ul .dropdown-menu{z-index: 3}
#header .dropdown-menu{background-color: lightgreen;margin: 5px}
#header .navbar-default .navbar-toggle .icon-bar{background-color: #ffffff}
.boxright{float:right;width:91.667%;max-width:1100px;padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid #e5e5e5}
.picture{float:left;overflow:hidden;width:38.637%;position:relative}
.picture img{display:block;max-width:100%;height:auto;cursor:pointer}
.picture.laptop img{margin-top:20px}
.picture .viewcolor{display:block;overflow:hidden;text-align:center}
.picture .viewcolor b{*float:left;display:inline-block;font-size:13px;color:#545454}
.picture .viewcolor a{*float:left;display:inline-block;background:#fff;border:1px solid #288ad6;border-radius:10px;-webkit-border-radius:10px;-moz-border-radius:10px;font-size:12px;color:#288ad6;text-align:center;margin-bottom:5px;cursor:pointer}
.picture .viewcolor a:hover{background:#288ad6;color:#fff}
.price_sale{float:left;width:33.274%;;margin-left: 8px}
.price_sale strong{display:block;font-size:22px;color:#d0021b;margin-bottom:6px}
.boxright{float:none;display:block;width:100%;overflow:hidden}
.tableparameter{float:right;width:27.274%;overflow:visible;margin:20px 0}
.tableparameter h4,.tableparameter h3,.tableparameter h2{display:block;line-height:1.3em;font-size:20px;color:#666;margin-bottom:10px}
.bot{
    padding-top: 15px;
    background-color: lightgrey;
    padding-bottom: 15px;
    margin-top: 5px;
}
#bot1{
    margin-left: 10px;
    padding-bottom: 25px;
}
#bot1 li a{
    color: black;
}
#gioithieu{
    margin-top: 35px;
}
#link a{
    margin-left: 10px;
}
#link a:hover{
    color: darkred;
}