style.css

body {
  text-align: center;
  box-sizing: border-box;
  background-color: whitesmoke;
  font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
}

nav {
  text-align: left;
  background-color: black;
  height: 50px;
  }

li{
   list-style-type: none;
   padding: 20px 50px;
   color: white;
   display: table-cell;
   vertical-align: middle;
 }

 li:hover{
   color: grey;
   background-color: gainsboro;
 }

 .carousel{
   height: 200px;
   width: auto;
   background-color: gray;
 }

span{
  font-size: 70%;
}

#firsth2{
  padding: 25px 0px;
}

#pic{
  padding: 100px 0px;
}

article{
  display:inline;
  background-color: gray;
  margin: 0px 20px;
  padding: 100px 200px;
}


#contact{
  text-align: left;
  margin: 10px 0px 25px 0px;
}

hr{
  margin: 100px 0px 0px 0px;
}

input {
  margin: 0 auto;
  margin: 3px 0px;
  width: 90%;
}

textarea{
  margin: 0 auto;
  margin: 3px 0px;
  width: 90%;
  height: 200px;
}