body {
  font-family: 'Montserrat', sans-serif;
  margin: 0;
  padding: 0;
  color: #1b1c20;
  background: #1b1c20;
}

.menu {
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 20px;
  font-size: 14px;
}
header{
  background-color: #333;
}
.container {
  max-width: 900px;
}

.container_content {
  max-width: 900px;
  margin: 0 auto;
  padding: 50px;

}

.logo img {
  width: 70px;
  height: auto;
}

nav ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
}

nav ul li {
  margin-left: 20px;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
  transition: color 0.3s;
}

nav ul li a:hover {
  color: #0077ff;
}



.bg_whrite {
  background: #fff;
}

.title {
  font-size: 24px;
  margin-bottom: 10px;
}

.intro {
  font-size: 18px;
  margin-bottom: 20px;
}

.info {
  font-size: 16px;
  margin-bottom: 20px;
}

.section-title {
  font-size: 20px;
  margin-bottom: 10px;
}

.list {
  list-style-type: disc;
}

.list li,
ul li {
  margin-top: 8px;
}

.ending {
  font-size: 16px;
  margin-top: 20px;
}

.team {
  font-size: 14px;
  font-style: italic;
  text-align: center;
  margin-top: 20px;
}
@media all and (max-width: 640px) {
    nav ul {
      display: block;
    }
}