html {
  height: 100%;
}

body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: Arial, "Helvetica Neue", Helvetica, "Microsoft YaHei", "微软雅黑", sans-serif;
  text-align: center;
  background-color: rgba(51, 70, 93, 1);
}

.header {
    position: fixed;
    z-index: 100;
    width: 100%;
    height: 52px;
    background-color: rgba(51, 70, 93, 1);
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.header a {
  margin-top: 10px;
  display: block;
  color: white;
  text-decoration: none;
}

#mainContent {
  width: 100%;
  height: 800px;
  padding-top: 30px;
}

#mainContent_ilife {
  width: 100%;
  background-color: rgba(0, 204, 153, 1);
  height: 800px;
  overflow: hidden;
}

#appScreenShot {
  display: inline-block;
  position: relative;
  width: 256.5px;
  height: 524.5px;
}

#appScreenShot_ilife {
  display: inline-block;
  position: relative;
  width: 300px;
  height: 600px;
  margin-top: 50px;
}

#fg {
  position: absolute;
  left: 16px;
  float: left;
  top: 30px;
  width: 240px;
  height: 500px;
  border-radius: 15px;
}

#content, #content_ilife {
  width: 900px;
  height: 800px;
  margin: 50px auto;
}

#appScreenShot img, #appScreenShot_ilife img {
  max-width: 100%;
  max-height: 100%;
}

#descText, #titleText, #titleText_ilife, #descText_ilife {
  width: 100%;
  color: white;
  font-size: 22px;
  margin-top: 50px;
}

#descText {
  margin-top: 20px;
  font-size: 18px;
}

#downloadInfo, #downloadInfo_ilife {
  display: inline-block;
  float: right;
  width: 300px;
  height: 300px;
  margin-right: 50px;
}

#codeContainer, #codeContainer_ilife {
  width: 200px;
  height: 200px;
  margin: 20px auto;
  background-color: white;
}

#qrCode {
  width: 200px;
  height: 200px;
}

#appStore, #android {
  width: 200px;
  height: 50px;
  margin: 30px auto;
  border-radius: 3px;
  background-color: rgba(0, 204, 153, 1);
}

#appStore a, #android a {
  text-decoration: none;
  color: white;
  line-height: 50px;
}

#model {
  width: 100%;
  height: 100%;
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 200;
  background-color: rgba(0, 0, 0, 0.7);
}

#modelContent {
  color: white;
  font-size: 18px;
  margin-top: 60px;
}