.brand_Thanh_Tung{
    color: #ff5858;
}
.brand_Thanh_Loan{
    color: blue;
}
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}
body {
    width: 100%;
    max-width: 1500px;
    margin: 0 auto;
    height: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    font-family: Arial, sans-serif;
    overflow: auto; 
}

#khung_social{
    width: 1200px;
    height: 150px;
    display: flex;
}
#logo{
    width: 200px;
    height: 150px;
}
#logo img{
    max-width: 100%; 
    height: auto; 
}
#social_media{
    width: 400px;
    height: 70px;
    border: solid 2px #ff5858;
    border-radius: 5px;
    margin-right:100px;
    margin-top: 50px;
    background-color: #1E50A2;
    display: flex;
    justify-content: center; 
    align-items: center;
    gap: 15px;
    padding: 5px;
}
.logo_social{
    width: 50px;
    height: 50px;
   
}
.logo_social img{
    max-width: 100%; 
    height: 100%; 
}
#khung_header {
    width: 100%;
    height: 200px; 
    position: fixed; 
    top: 0;
    left: 0;
    background-color: white; 
    z-index: 1000; 
    display: flex;
    flex-direction: column;
    align-items: center;
}
#khung_menu {
    width: 1200px;
    height: 50px;
    border: solid 2px #ff5858;
    display: flex;
    align-items: center; 
    text-decoration: none; 
}
#khung_menu a {
    text-decoration: none;

}
#khung_menu a:hover .menu p {
    color: #ff5858;
}
.menu {
    width: 200px;
    height: 30px;
    border: solid 2px #ff5858;
    background-color: #1E50A2;
    color: white;
    display: flex;
    justify-content: center; 
    align-items: center; 
    text-align: center;
    border-radius: 5px;
    margin: 0 50px;
}
#khung_body {
    width: 1000px;
    height: 80000px;
    border: solid 2px #ff5858;
    padding: 20px;
    background-color: #f9f9f9;
    margin-top: 220px;
}
#khung_body a{
    text-decoration: none;
    color: #1E50A2;
}
h1{
    text-align: center;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    border: 1px solid #ff5858;
    padding: 10px;
}
th {
    background-color: #1E50A2; 
    color: white; 
    text-align: center;
}
td {
    text-align: center; 
}