* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Tahoma', sans-serif;
  margin: 0;
  padding: 0;
}

.logo img {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;
  
}

.font-run .marquee p {
  background-color: #f2f2f2;
  padding: 10px;
  margin: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

header .nav {
  background: #333;
}

header .nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

header .nav ul li {
  position: relative;
}

header .nav ul li a {
  display: block;
  color: #fff;
  text-decoration: none;
  padding: 10px 15px;
  font-size: 14px;
}

header .nav ul li ul {
  display: none;
  position: absolute;
  background: #444;
  padding: 0;
}

header .nav ul li:hover ul {
  display: block;
}

header .nav ul li ul li a {
  padding: 10px 15px;
}

.head2 {
  background: #f0f0f0;
  padding: 10px;
  text-align: center;
}

.head2 h1 {
  margin: 0;
  font-size: 20px;
}

.container {
  display: flex;
  flex-wrap: wrap;
}

.box-right {
  flex: 3;
  padding: 10px;
}

.box-right .box-item img {
  width: 100%;
  height: auto;
  border-radius: 5px;
}

.box-left {
  flex: 1;
  background: #f8f8f8;
  padding: 10px;
  font-size: 14px; /* ลดขนาดตัวหนังสือในกล่อง box-left */
}

.box-left-search {
  width: 100%;
  padding: 5px;
  margin-bottom: 10px;
  font-size: 13px;
}

.box-menu {
  display: block;
  padding: 5px 10px;
  margin-bottom: 5px;
  background: #ddd;
  text-decoration: none;
  color: #333;
  border-radius: 3px;
  font-size: 14px; /* ลดขนาดเมนูลง */
}

.box-menu:hover {
  background: #ccc;
}

footer {
  background: #333;
  color: #fff;
  padding: 20px 10px;
}

.footer-top-con {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-top-item {
  flex: 1;
  min-width: 250px;
}

.footer-top-item h6 {
  margin-top: 0;
  font-size: 16px;
}

.footer-top-item p {
  margin: 5px 0;
}

iframe {
  width: 100%;
  max-width: 600px;
  height: 450px;
  border: 0;
}

@media (max-width: 768px) {
  header .nav ul {
    flex-direction: column;
  }

  .container {
    flex-direction: column;
  }
}