*{
  margin: 0px;
  padding: 0px; 
}

.container
{
  width: 100%;
}

.wrapper
{
  width: 100%;
  margin: 0px;
}

.dark
{
  background-color: blue; 
  color: white;
}

body {
       background-color: cyan;
       color: rgb(0, 0, 255); 
     }

h2 {

  font-family: arial; 
  font-size: 30px;
  color: rgb(0, 0, 255); 
  height:50px;
  background-color: magenta;
  background-color: aquamarine;
  line-height:50px;
  text-align: center; 
} 


h3 {

  font-family: arial; 
  font-size: 30px;
  color: green;
  text-align: center; 
} 


h4 {

  font-family: arial; 
  font-size: 25px;
  color: blue;
  background-color: aquamarine; 
  padding: 15px;
} 

h5 {

  font-family: arial; 
  font-size: 30px;
  color: blue; 
  text-align: center;
  padding: 15px;
  
} 


h6 {

  font-family: arial; 
  font-size: 20px;
  color: green; 
  padding: 15px;
  
} 


p {
  font-size: 18px;
  font-color: blue;
}


ul
{
  text-align: left; 
}

ul li
{
  width: 120px;
  display: inline-block; 
  height: 35px;
  line-height: 35px; 
  text-align: center; 
}

ul li a
{
   font-family: arial; 
   font-weight: bold; 
   color: white; 
   text-decoration: none; 
   display: block; 
   text-align: center; 
}

ul li a:hover, ul li a.active
{
  background-color: orange; 
  color: black;
}

.copyright
{
  margin-top: 20px;
  margin-bottom: 20px; 
  text-align: center; 
  font-family: serif;
  background-color: navy; 
  color: white;
}

.main_body
{  
  width: 750px;  
  color: black;
  background: magenta;
  background-color: white ;
  text-align: justify;
  margin-left: 100px; 
  padding: 10px;
}


tr:nth-child(even) {background-color: lightblue;} 
tr:nth-child(odd) {background-color: lawngreen;} 


#div_text
{
  margin: 5px;
  text-align: left; 
  padding: 5px;
  margin-right: 10px;   
  margin-left: 10px;
}


#div_text p 
{
  font-family: arial; 
  font-size: 20px;
  text-align: left; 
  font-weight: bold;  
  color: darkblue;
  margin-bottom: 5px;
}

a
{
   font-family: arial; 
   font-weight: bold; 
   color: black; 
   text-decoration: none; 
   display: block; 
   text-align: left; 
   font-size: 16px;
}

a:hover, ul li a.active
{
  background-color: orange; 
  color: black;
}  

table 
{
    table-layout: fixed ; 
    width: 100% ;
}