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

a {
  text-decoration: none;
}

img {
  border: none;
}

ol,
ul,
li {
  list-style: none;
}

table {
  border-collapse: collapse;
}

html,
body {
  width: 100%;
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.main {
  width: 100%;
  height: 100%;
  flex-grow: 1;
  position: relative;
  z-index: 10;
}
.main-chunk {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  flex-direction: column;
  justify-content: center;
  padding: 50px 0;
}
.main-chunk .content {
  width: 100%;
  padding: 10px 10% 30px 10%;
  word-break: break-all;
  font-size: 20px;
  line-height: 28px;
  text-align: center;
  color: #555;
}
.main-chunk a {
  display: inline-block;
  background-color: #fff;
  padding: 20px 20px 15px 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
  text-align: center;
  line-height: 20px;
  color: #000;
  font-size: 16px;
}
.main-chunk a img {
  width: 200px;
  height: 200px;
  margin-bottom: 10px;
}
.header {
  height: 60px;
  line-height: 60px;
  border-bottom: 1px solid #eee;
  flex-shrink: 0;
  z-index: 16;
  padding-left: 40px;
}

.header .box img {
  width: 50px;
  height: 50px;
  vertical-align: middle;
  display: inline-block;
}

.header .box span {
  vertical-align: middle;
  display: inline-block;
  margin-left: 10px;
  font-size: 22px;
}
.bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 8;
}

.bg .top {
  height: 50%;
  width: 100%;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 8;
}

.bg .bottom {
  background: url('./img/browser_bg.png') no-repeat -5px 0;
  background-size: 101% 102%;
  height: 50%;
  width: 100%;
  position: absolute;
  top: 50%;
  left: 0;
  z-index: 8;
}
.footer {
  flex-shrink: 0;
  width: 100%;
  z-index: 16;
  text-align: center;
  color: #333;
  font-size: 14px;
  line-height: 18px;
  padding: 10px 30px;
}