*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.ariaHeader{
    margin-top: 0;
    width: 100%;
    height: 400px;
    background-image: url("../IMG_Visual/banner.jpg");
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;

}
.banner{
    margin-left: 20%;
    margin-bottom: 3%;
    margin-top: 2%;
    width: 50%;
}
.about{
    margin-left: 20%;
    margin-bottom: 3%;
    margin-top: 2%;
    width: 50%;
    border: 2px solid black;
}
.about h3{
    line-height: 30px;
}
.about h1{
    text-align: center;
    margin-bottom: 2%;
    color: blue;
}
.tieude{
    font-size: 35px;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}
.content{
    margin-left: 5%;
}
.content h3{
    margin-left: 5%;
    padding: 1%;
    margin-top: 2%;
}
.content p{
    padding: 2%;
    line-height: 30px;
}
section img{
    width: 100%;
}


.blog{
    padding-left: 1%;   
    font-weight: bold;
    font-family: 'Abril Fatface', 'cursive';
}


.content li {
    line-height: 30px;
    list-style: none;
}
.content li a{
    text-decoration: none;
    font-style: italic;
    color: blue;
    
}


.row::after {
    content: "";
    clear: both;
    display: table;
  }
  
  [class*="col-"] {
    float: left;
    padding: 15px;
  }

/* for table */
  @media only screen and (min-width: 768px) {
    /* For desktop: */
    .col-s-1 {width: 8.33%;}
    .col-s-2 {width: 16.66%;}
    .col-s-3 {width: 25%;}
    .col-s-4 {width: 33.33%;}
    .col-s-5 {width: 41.66%;}
    .col-s-6 {width: 50%;}
    .col-s-7 {width: 58.33%;}
    .col-s-8 {width: 66.66%;}
    .col-s-9 {width: 75%;}
    .col-s-10 {width: 83.33%;}
    .col-s-11 {width: 91.66%;}
    .col-s-12 {width: 100%;}
    /* Chỉnh sửa Menu cấp 1 */
#menu{
    width: 100%;
    height: 40px;
    background-color: black;
}
ul.root > li{
    list-style: none;
    position: relative;
    padding-left: 1%;
}
ul.root > li > a{
    text-decoration: none;
    padding: 0px 15px;
    line-height: 40px;
    display: block;
    color: white;
}
ul.root > li > a:hover{
    background: gray;
    transition: ease-in 1s;
}
.menuLeft{
    float: left;
}
.menuRight{
    float: right;
    margin-right: 1%;
}
/* Chỉnh sửa Menu cấp 2 */
ul.subMenu{
    padding-left: 0;
    width: 150px;
    background: black;
    min-height: 90px;
    position: absolute;
    display: none;
}
ul.subMenu li{
    list-style: none;
}
ul.subMenu li a{
    text-decoration: none;
    display: block;
    border-top: 2px solid black ;
    line-height: 30px;
    text-indent: 10px;
    color: white;
}
ul.root > li:hover .subMenu{
    display: block;
}
.subMenu li a:hover{
    background: gray;
    transition: ease-in 1s;
}


}





/* for desktop */
 @media only screen and (min-width: 992px) {
    /* For desktop: */
    .col-1 {width: 8.33%;}
    .col-2 {width: 16.66%;}
    .col-3 {width: 25%;}
    .col-4 {width: 33.33%;}
    .col-5 {width: 41.66%;}
    .col-6 {width: 50%;}
    .col-7 {width: 58.33%;}
    .col-8 {width: 66.66%;}
    .col-9 {width: 75%;}
    .col-10 {width: 83.33%;}
    .col-11 {width: 91.66%;}
    .col-12 {width: 100%;}
    
    }
    
    footer{
        width: 100%;
        min-height: 500px;
    }
    footer div p{
        padding: 20px 50px;
        color: rgb(240, 230, 230);
    }
    footer h2{
        padding-left: 2%;
    }
    .image {
        width: 100%;
        display: inline-block;
        padding-left: 2%;
    }
    
    
    .image img{
        display: block;
        margin: 0 40px 10px 0;
        width: 92%;
    }
    .title{
        text-align: center;
        font-size: 30px;
        padding-top: 10px;
    }
    
    



    

    /* For mobile phones: */
 @media only screen and (max-width: 767px) {
    [class*="col-"] {
    width: 100%;
  }
  .content h1{
    font-weight: bold;
    font-size: 25px;
    }
    .content{
        color: black;
        margin-left: 1.7%;
    }
    .menu li{
        float: left;
        padding: 1% 
    }
     /* Chỉnh sửa Menu cấp 1 */
#menu{
    width: 100%;
    height: 40px;
    background-color: black;
}
ul.root > li{
    list-style: none;
    position: relative;
    padding-left: 1%;
}
ul.root > li > a{
    text-decoration: none;
    padding: 0px 15px;
    line-height: 40px;
    display: block;
    color: white;
}
ul.root > li > a:hover{
    background: gray;
    transition: ease-in 1s;
}
.menuLeft{
    float: left;
}
.menuRight{
    float: right;
}
/* Chỉnh sửa Menu cấp 2 */
ul.subMenu{
    padding-left: 0;
    width: 150px;
    background: black;
    min-height: 90px;
    position: absolute;
    display: none;
}
ul.subMenu li{
    list-style: none;
}
ul.subMenu li a{
    text-decoration: none;
    display: block;
    border-top: 2px solid black ;
    line-height: 30px;
    text-indent: 10px;
    color: white;
}
ul.root > li:hover .subMenu{
    display: block;
}
.subMenu li a:hover{
    background: gray;
    transition: ease-in 1s;
}


}