header.css

.header{
height: 130px;
width: 100%;
background: #dfe6e9;
border: solid red 2 px;
margin: 0px;
}

.header img{
  height: 95%;
  float:left;
  margin-left: 10px;
  margin-right: 30px;
}

.header h1{
padding-top: 20px;
padding-bottom: 0px;
margin: 0;  
font-size: 40px;
}
.header h2{
padding-top: 8px;
padding-bottom: 0px;
margin: 0; 
font-size: 30px;
}

.nav {
  height : 40px;
  width : 100%;
  background: #4CAF50;
  margin: 0px;
}

.nav ul{
  margin: 0px;
}

.nav ul li{
  list-style: none;
  display: inline;
  float: right;
  padding-right: 30px;
}

.nav ul li a{
    text-decoration: none;
    padding: 8px;
    margin: 0px;
    font-size: 20px;
    color: black;
    display:block;
}

.nav a:hover{
  background: #00b894;
  font-weight: bold;
}