* {
    box-sizing: border-box;
}
html{
    font-size: 62.5%;
}
/* khoi phuc co chu mac dinh */
body{
    font-size: 1.6rem;
    font-family: "Poppins", sans-serif;
}

/* Common */
a{
    text-decoration: none;
}
.main-content{
    width: 1170px;
    max-width: calc(100% - 48px);
    margin-left: auto;
    margin-right: auto;
}

.nav a{
    color: black;
    font-size: 1.6rem;
    /* background-color: blue; */
    padding: 8px 21px;

}
.nav a:hover{
    color: black;
    text-shadow: 1px 0 0 black;
}

/* Header */
.header .body{
    display: flex;
    align-items: center;
    padding: 15px 0 10px;

}

.header.fixed{
    position: sticky;
    top: -5px;
}

.nav ul{
    display: flex;
    
    
}
.header{
   background: white;
}
.nav{
    margin-left: auto;
}


/* Hero */

.hero .main-content .body{
    display: flex;
}

.hero .content-block p{
    margin-left: 10%;
    margin-top: 20px;
    font-size: 5rem;
    width: 100%;
}

.hero .body{
    background-color: rgb(243, 235, 235);
}


/* Lastest */
.lastest{
    margin-top: 20px;
}
.lastest .main-content .body{
    display: flex;
}

.lastest .content-block h2{
    font-size: 7rem;

}
.lastest .content-block p{
    font-size: 2rem;
    font-style: italic;
    margin-left: 20px;
    margin-right: 10px;
}

.lastest a{
    text-decoration: underline;
    margin-left: auto;
    margin-top: auto;
    margin-bottom: 10px;
    padding: 10px;
}
.lastest a:hover{
    color: black;
    text-shadow: 1px 0 0 black;
    cursor: pointer;
}

#datetime{
    margin-top: 30px;
    margin-left: 10px;
}

/* footer */
.footer .body{
    display: flex;
}

.footer .tongquan p{
    text-align: center;

    margin-bottom: 30px;
    font-size: large;
}

.footer .lienhe{
    margin-left: 300px;
    margin-right: 10px;
}
.footer .title{
    margin-top: 50px;
    border-bottom: 5px;
    border-color: black;
    font-size: 3rem;
    margin-bottom: 50px;
}
.footer p{
    margin-top: 10px;
}