html {
  scroll-behavior: smooth;
}

nav ul {
  list-style: none;
}

a {
  color: #333;
  text-decoration: none;
}

header {
  position: relative;
  height: 100px;
  margin: 0 auto;
}

header h1 {
  padding-bottom: 0;
  margin-bottom: 0;
}

.sub-logo {
  position: relative;
  margin-top: 0;
  left: 20px;
  display: block;
}


nav {
  position: absolute;
  bottom: 0px;
  right: 10px;
  margin-bottom: 0;
}

nav.footer {
  position: relative;
  float: left;
  width: 60%;
  margin: 30px 0 0 0px;
}

nav li {
  margin-left: 30px;
  display: inline;
  float: none;
}

#copyright {
 float: right;
 /* text-align: right; */
}

.main {
  margin: 0 auto;
  width: 100%;
  white-space: pre-line;
}

.tour{
  margin: 0 auto;
  width: 70%;
}

.welcome-txt {
  text-align: center;
  margin: 0 auto;
  width: 70%;
}
.about {
  margin: 0 auto;
  width: 70%;
}
h3{
  font-size: 30px;
}