body{
    background-color: salmon;
}
header
{   height: 3em;
    display: flex; 
    justify-content: space-between;
    align-items: center;   
}
nav ul 
{ 
display: flex;
}
nav ul li
{
display: flex;
}
nav ul li a 
{   color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 1em;
    font-family: "Arial",bold ;
    background-color: aqua;
    display: block;
    margin: .12em;
    padding: .45em 0.5em 0.5em;
    width: 100%;
    height: 100%;
    box-sizing: border-box;  
    display: flex;
    justify-content: center;
    align-items: center;
}
main{ 
    color :black;
    background-color:antiquewhite;
    font-size : 1em ;
    margin: .12em;
    padding: .20em 0.5em 0.5em;
    box-sizing: border-box;
}
div{
    display: flex;
    justify-content: center;
    align-items: center;
}
h5{
    text-align: center;
}
h2{
    text-decoration: underline;
    display: flex;
    justify-content: center;
    align-items: center;
}
H7{
    display: flex;
    justify-content: center;
    align-items: center;
}
h3{
    display: flex;
    justify-content: center;
    align-items: center;
}
h4{
    display: flex;
    justify-content: center;
    align-items: center;
}
p{
  display: flex;
  justify-content: center;
  align-items: center;  
}
ul li a
{   color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 1em;
    text-align: center;
    font-family: "Arial",bold ;
    background-color: aqua;
    margin: auto;
    margin-bottom: 0.5em;
    padding: .20em 0.5em 0.5em;
    width: 30%;
    height: 100%;
    box-sizing: border-box;  
    display: flex;
    justify-content: center;
    align-items: center;
}
footer{
    background-color: azure;
}
*
{
    font-family: sans-serif;
}