.topbanner{
    display: none;
}
.topbannermb{
    display: block;
}
.text-menu{
    font-size: 0.7em;
}
.gach{
    font-size: 1em;

}

.box11{
    flex-direction: column;
    padding: 20px 10px;

}
.textgt2{
    padding: 10px;

}
.gioithieu{
    padding: 20px 5px 10px 5px;
}
.video-box11{
  padding: 10px 0px;
    text-align: center;
    
}
.box013{
    height: auto;
    /* background-image: linear-gradient(to right, #c10b0b, #ab781b); */
    background-image: url(media/nen11MB.jpg);
    background-size: cover;
    padding-bottom: 70px;
}
.textgt0 {
    display: none;
}
.khoi21{
    flex-direction: column;
    background-image: url(media/nen22MB2.jpg);
    background-size: cover;
    background-repeat: no-repeat;
    
}
.khoi211{
    width: 100%;
    padding-bottom: 200px;
}
.khoi212{
    width: 100%;
}

.box31{
    padding: 5px;
}
.textbox311 {
    font-size: 2em;
}
.textbox312 {
    font-size: 1em;
}
.khoi5{
    background-image: url(media/nen3MB.jpg);
}
.textbox511{
    font-size: 1.2em;
}
.box600{
    font-size: 2.1em;
    
}

.box61{
    flex-direction: column;
}
.box611{
    width: 100%;
}
.box612{
    width: 100%;
}
.tacgia1{
    font-size: 1em;
}
.text611{
    font-size:1em;
    color: #C1272D;
    font-weight: bold;
}
.box61211{
    font-family: avo;
    font-weight: bold;
    font-size: 10px;
}