#tail, .masthead .navs .nav-item {
  position: absolute;
  color: white;
  background-color: #f57a46;
  border-radius: 6px;
  font-size: 18px;
  padding: 4px 24px;
  display: inline-block;
  user-select: none;
  cursor: pointer;
  white-space: nowrap;
  line-height: 30px;
}

#tail:hover, .masthead .navs .nav-item:hover{
  background-color: rgb(13, 115, 55);
}

.masthead .navs .nav-item {
  top: 100px;
}

#nav1 {
  left: 30px;
  padding: 4px 8px;
}

#nav2 {
  left: 240px;
}

#nav3 {
  padding: 4px 8px;
  right: 190px;
  font-size: 16px;
}

#nav4 {
  padding: 4px 8px;
  font-size: 16px;
  right: 20px;
}

#tail {
  bottom: 30px;
  right: 20px;
  padding: 4px 12px;
  font-size: 20px;
}

#main .content-nav {
  user-select: none;
  width: 86%;
  padding: 0px 7%;
  min-width: 1080px;
  position: fixed;
  top: 0px;
  background-color: white;
  z-index: 100;
}

#main .content {
  padding-top: 80px;
}

#index {
  display: inline-block;
  cursor: pointer;
}

#index .icon {
  display: inline-block;
  width: 40px;
  height: 40px;
  padding: 10px;
  vertical-align: top;
}

#index .text {
  font-size: 24px;
  line-height: 70px;
  padding-right: 10px;
}

.content-nav {
  padding-top: 10px;
}

.content-nav .nav-item {
  float: right;
  color: white;
  background-color: #f57a46;
  border-radius: 6px;
  font-size: 18px;
  padding: 4px 8px;
  user-select: none;
  cursor: pointer;
  white-space: nowrap;
  margin-right: 20px;
  margin-top: 18px;
}

.content-nav .nav-item:hover,
.content-nav .nav-item--active {
  background-color: rgb(13, 115, 55);
}

.content-nav #main-nav4 {
  margin-right: 10px;
}