body {
  background-color:grey;
      }
    
@media screen and (min:width:320px){
  body {
    background-color:green;
      }
  }
    

@media screen and (min:width:550px){
  body {
    background-color:yellow;
      }
  }
    
@media screen and (min:width:768px){
  body {
    background-color:orange;
      }
  }
    
@media screen and (min:width:960px){
  body {
    background-color:red;
      }
  }
      
body {
  font-family: times new roman;
}
      
ul {
  font-family: monospace;
}
    

body {
  margin: 0;
  background: #66FCF1;
  font-family: times new roman, sans-serif;
  font-weight: 300;
  
}

body {
  background-color: #0B0C10;
}

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

header {
  background: #45A29E;
}

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

nav {
  float:right;
}

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

nav li {
  display: inline-block;
  margin-left: 50px;
  padding-top: 15px;
  padding-bottom: 15px;
  padding-right: 15px;
  
  position: relative;
}

nav a {
  color: #444;
  text-decoration: none;
  text-transform: uppercase;
  font-size: 16px;
}

nav a:hover {
  color: #000;
}

nav a::before {
  content:'';
  display: block;
  height: 5px;
  width: 100%;
  background-color: #000
    
  position: absolute;
  top: 0%;
  width: 0%;
}

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


body {
  margin: 0;
  padding: 0;
  background-size: cover;  
}

#logo {
  font-family: "times new roman", cursive;
  font-size: 35px;
  position: absolute;
  left: 5%;
}

.contact-form {
  width: 85%;
  max-width: 600px;
  background: #f1f1f1;
  position: absolute;
  top: 50%;
  left: 20%;
  transform: translate (-50%, -50%);
  padding: 50px 50px;
  box-sizing: border-box;
  border-radius: 8px;
  text-align: center;
  box-shadow: 0 0 20px #000000b3;
  font-family: "Times New Roman", sans-serif;
}

.contact-form h1 {
  margin-top: 0;
  font-weight: 200;
}

.txtb {
  border: 1px solid gray;
  margin: 8px 0;
  padding: 12px 18px;
  border-radius: 8px;
}

.txtb label{
  display: block;
  text-align: left;
  color: #333;
  text-transform: uppercase;
  font-size: 14px;
}

.txtb input,.txtb textarea {
  width: 100%;
  border: none;
  background: none;
  outline: none;
  font-size: 18px;
  margin-top: 6px;
}

.btn {
  display: inline-block;
  background: #9b59b6;
  padding: 14px 0;
  color: white;
  text-transform: uppercase;
  cursor: pointer;
  margin-top: 8px;
}

#home-text, p {
  padding-top: 20px;
  padding-left: 10px;
}