html,body {
  width: 100%;
  height: 100%;
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  margin: 0 auto;
  min-width: 320px;
  max-width: 750px;
  overflow: hidden;
}

* {
  word-wrap:break-word;
  word-break:break-all;
  text-align: justify;
  max-height: 9999999999px;
  box-sizing: border-box;
}

a {
  text-decoration: none;
  color: unset;
}

h1,
h2 {
  margin: 0;
  padding: 0;
}

.hide {
  display: none;
}

.commonNav {
  height: 44px;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  position: relative;
  align-items: center;
  position: fixed;
  left: 0;
  right: 0;
  top: 0;
  z-index: 980;
  background-color: #1d1d27;
  display: none;
}

.commonNav .back {
  display: flex;
  height: 44px;
  width: 44px;
  position: relative;
}

.backIco:after,
.backIco:before {
  border: 9px solid transparent;
  border-right: 9px solid #1d1d27;
  width: 0;
  height: 0;
  position: absolute;
  top: 13px;
  right: 15px;
  content: ' ';
}

.backIco:before {
  border-right-color: #fff;
  right: 17px;
}

.commonNav .title {
  font-size: 16px;
  color: #fff;
  text-align: center;
  width: 100%;
  margin-right: 40px;
}

.navShow {
  padding-top: 44px;
}

.navShow .commonNav {
  display: flex;
}