html {
  font-size: 100%;
  overflow-y: scroll;
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
}

body {
  background-color: #252429;
  background-image: url("background.jpg");
  background-size: cover;
  font-family: "Open Sans";
  font-size: 16px;
  margin: auto;
}

h1 {
  color: #ffffff;
  font-size: 48px;
}

h2 {
  color: #ffffff;
  font-size: 32px;
}

h3 {
  color: #A1BF10;
  font-size: 28px;
}

h4 {
  color: #ffffff;
  font-size: 24px;
}

h5 {
  color: #ffffff;
  font-size: 18px;
}

p {
  color: #ffffff;
  font-size: 16px;
}

span {
  color: #ffffff;
  font-size: 18px;
}

.header {
  overflow: hidden;
  background-color: #000000;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 128px;
  text-align: center;
}

.content {
  margin-top: 128px;
  width: 100%;
  height: 420px;
  background-image: url("asset-background.png");
  background-size: cover;
}

.content-cover {
  width: 100%;
  height: 100%;
  background: rgb(0, 0, 0, 0.7);
}

.content-text {
  padding-top: 85px;
  width: 100%;
  max-width: 800px;
  margin: auto;
  text-align: center;
}

.introduction {
  height: 160px;
  max-width: 800px;
  margin: auto;
}

.contactus {
  height: 200px;
  max-width: 800px;
  margin: auto;
}

.footer {
  background-color: #000000;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  text-align: center;
}

.main-button {
  border: 2px solid white;
  background: none;
  color: #ffffff;
  padding: 14px 28px;
  font-size: 16px;
  cursor: pointer;
  font-family: "Open Sans";
  font-size: 18px;
}

a {
  color: #aaaaab;
}