body{
  margin: 0;
  background-image: url("city_night.jpg");
  background-position: center;
  background-size: cover;
  position: relative;
  font-family: 'Gill Sans', sans-serif;
  font-weight: 800;
  text-align: center;
}

h1{
 color: #583982;
 font-size: 30px;
 background-color: #000514;
 border-style: solid; 
 border-color: #011015;
 width: 50%;
}

p{
  background-color: rgba(40, 56, 71,.6);
  color: #ffcf2d;
  font-size: 25px;
  line-height: 50px;
  border-style: solid; 
  border-color: #011015;
  width: 50%;
}

}

.center{
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}

.navbar{
height: 100px;
}

.container{
width: 80%;
margin: 0 auto;
}

header{
background: rgba(111,105,107,.45);
}

header::after {
  content: '';
  display: table;
  clear: both;
}

.logo{
float: left;
}

nav{
float: right;
padding: 10px 0;
}

nav ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

nav li {
  display: inline-block;
  margin-left: 70px;
  padding-top: 23px;

  position: relative;
}

nav a {
  color: #ffa709;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 20px;
}

nav a:hover {
  color: #000;
}

nav a::before {
  content: '';
  display: block;
  height: 5px;
  background-color: #444;

  position: absolute;
  top: 0;
  width: 0%;

  transition: all ease-in-out 250ms;
}

nav a:hover::before {
  width: 100%;
}