*{
    box-sizing: border-box;
}
body{
    font-family: arial;    
}
.header{
    font-size: 70px;
    text-align: center;
    color: darkblue; 
    transition: 0.5s;
    margin-bottom: 0!important;          
}
.header:hover{
    transition-delay: 0.1s;
    text-shadow: 0 0 8px blue, 0 0 16px darkblue, 0 0 24px rgb(0, 0, 92);
    letter-spacing: 0.1em;
}
.header1{
    font-size: 40px;
    text-align: center;
    color: rgb(36, 36, 36);
    margin-top: -3px;                   
}
.button-base{
    background-color: rgb(219, 219, 219);
    width: 100% 0;
    padding: 15px;
    text-align: center;
}
.button{
    padding: 15px 30px;
    width: 30% 0;
    text-decoration: none;
    transition: 0.4s;
}
.button:hover{
    background-color: darkblue;
    color: rgb(255, 255, 255); 
    transition-delay: 0.2s;    
    letter-spacing: 5px;
    box-shadow: 0 0 5px blue, 0 0 10px darkblue, 0 0 15px rgb(0, 0, 73); 
    margin: 12px;   
}

.dropbtn {    
    color: blue;
    padding: 15px 30px;
    border: none;
    background-color: rgb(219, 219, 219); 
    font-size: 18px; 
    transition: 0.4s; 
}

.dropbtn:hover{
    box-shadow: 0 0 5px blue, 0 0 10px darkblue, 0 0 15px rgb(0, 0, 73);
    letter-spacing: 5px;
}
  
.dropdown {
    position: relative;
    display: inline-block;
}
  
.dropdown-c {
    display: none;
    position: absolute;
    background-color: #f1f1f1;
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
    z-index: 1;
    font-family: consolas;
    font-style: italic;
    font-size: 20px;
}
  
.dropdown-c a {
    color: blue;
    padding: 15px 30px;
    text-decoration: none;
    display: block; 
    transition: 0.4s;
    width: 100% 0;   
}
  
.dropdown-c a:hover {
    background-color: darkblue;
    color: white;
    transition-delay: 0.2s;
    letter-spacing: 1px;
    width: 100% 0;
    box-shadow: 0 0 5px blue, 0 0 10px darkblue, 0 0 15px rgb(0, 0, 73);
}
  
.dropdown:hover .dropdown-c {
    display: block;    
}
  
.dropdown:hover .dropbtn {
    background-color: darkblue;
    color: white;
    transition-delay: 0.2s;    
}


.pro-button{
    display: none;    
    padding: 15px 30px;
    text-decoration: none;
    width: auto;
    color: darkblue;
    transition: 0.3s;
    border: none;
    background-color: rgb(219, 219, 219);
    font-size: 30px;
}
.pro-button:hover{
    background-color: darkblue;
    transition-delay: 0.1s;
    color: white;
    letter-spacing: 0.4em;        
}

.header2{
    font-family: pyidaungsu;
    color: darkblue;
    text-align: center;
}

.course-base{
    width: 100% 0;    
}
.course{
    width: 100% 0;
    text-align: center;
}
.course1{
    float: left;
    margin: 5px 5px;
    width: 24.2%;    
    padding: 10px;
}
.course2{
    background-color: darkblue;
    color: white;
    border: 2px solid darkblue;
    border-top-right-radius: 18px;
    border-top-left-radius: 18px;
    height: 130px;
}
.course3{
    border: 2px solid darkblue;
    height: 160px;
}
.course-link{
    border: 2px solid darkblue;
    border-bottom-left-radius: 18px;
    border-bottom-right-radius: 18px;
    background-color: darkblue;    
    padding: 10px;
    height: 50px;
}
.course-link1{
    color: white;
    text-decoration-color: white;
    transition: 0.2s;
    padding: 10px;
}
.course-link1:hover{
    transition-delay: 0.2s;
    letter-spacing: 2px;
}
.course-speacer{
    width: 24.2%;
    float: left;
    color: white;
    margin: 5px 5px;
}

.footer{    
    padding: 10px;    
    width: 100% 0;    
    cursor: pointer;
}
.footer1{
    background-color: darkblue;
    color: white;
    width: 65%;
    float: left;
    text-align: center;
    height: 220px;
    padding: 43px 5px 10px;
}
.footer2{
    background-color: darkblue;
    color: white;
    width: 35%;
    float: left;
    text-align: left;
    height: 220px;
    padding: 20px 5px 10px;
    font-family: consolas;
    font-style: italic;
    text-align: left;    
}
@media(max-width: 1300px){
    .course1{width: 23%;}
    .course3{height: 200px;}
    .footer{margin: 200px 0 0 0 ;width: 100%;}
    .course-link{height: 70px;}
    .footer1{height: 220px;}
    .footer2{height: 220px;}    
}
@media(max-width: 1150px){    
    .course1{width: 47%;height: 275px;margin: 20px 5px 20px 5px;}
    .course2{height: 100px;}
    .course3{height: 125px;}   
    .course-link{height: 50px;}
    .footer{margin: 780px auto 0;text-align: center;}
    .course-speacer{display: none;}
}
@media(max-width: 956px){
    .course1{width: 100%;height: 250px;margin: 30px 0 20px;} 
    .course3{height: auto;} 
    #internet{margin-top: 60px;} 
    #accounting-excel{margin-top: 60px;}  
    .button{display: none;}
    .dropbtn{display: none;}    
    .pro-button{display: block;}    
    .footer{margin: 2250px auto 0;text-align: center;}
    .course-speacer{display: none;}
    .button-base{height: auto;}
    .footer1{width: 100%;padding: 5px;height: auto;}
    .footer2{width: 100%;padding: 5px;height: auto;text-align: justify;}     
}