body
{
    width: 100%;
    height: 100%;
    background-color: #EBEBEB;
}

.main_body
{
    background-color: white; 
    width: 100%;
    height: auto;
    margin: 10px 10px; 
}


.mycontainer-fluid
{
    background-color: #0080ff;
    width: 100%;
    height: 40%;
   
}

.mycontainer
{
    background-color:rgba(0,0,0,0.9);
    height: 40%;
    margin-top: 5%;    
}