td.checked-true{
   	width: 30px;
   	background-image: url("../img/ok.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 20px;
   
   }
   
   td.checked-false{
   	width: 30px;
   	background-image: url("../img/nok.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 20px;
   
   }
   
   div.checked-true{
   	display: inline-block;
   	width: 30px;
   	height: 30px;
   	background-image: url("../img/ok.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 20px;
   
   }
   
   div.checked-false{
   	display: inline-block;
   	width: 30px;
   	height: 30px;
   	background-image: url("../img/nok.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 20px;
   
   }
   
   button.btn-view{
   	width: 40px;
   	height: 40px;
   	background-image: url("../img/view.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 30px;
   }
   
   button.btn-edit{
   	width: 40px;
   	height: 40px;
   	background-image: url("../img/edit.svg");
   	background-repeat: no-repeat;
   	background-position: center;
   	background-size: 30px;
   }
   
   th.width100{
   	min-width: 100px;
   }
   
	li.auth-bloc{
		margin-left: 10px;
		vertical-align: middle;
	}	
	
	li.auth-bloc div{
		display: inline-block;
	}
	
	li.auth-bloc button{
		display: inline-block;
	}
	
	div.loggedin{
		height:30px;
		color: #525252;
    	background-color: #e2e2e2;
    	padding: 5px 10px 5px 40px;
    	border-radius: 20px;
		
	}
	
	button.logout{
		height:30px;
		width: 30px;
		border-radius: 20px;
	   	background-image: url("../img/logout.svg");
	   	background-color: #e2e2e2;
	   	background-repeat: no-repeat;
	   	background-position: center;
	   	background-size: 17px;
	
	}
	
	button.signin{
		height:30px;
		width: 30px;
		border-radius: 20px;
	   	background-image: url("../img/signin.svg");
	   	background-color: #e2e2e2;
	   	background-repeat: no-repeat;
	   	background-position: center;
	   	background-size: 17px;
	
	}
	
	div.form-floating{
		margin-bottom: 15px;
	
	}
	
	header {
            background: #333;
            color: #fff;
            text-align: center;
            padding: 20px 0;
        }
	
	header div{
        
        	width: 100%;
        	display:inline-block;
        	background-image: url("../img/banner.jpg");
        	background-repeat: no-repeat;
        	background-position: center;
        }
        
        img.header_logo{
        	width:400px;
        
        }
        nav {
            display: flex;
            justify-content: center;
            background: #444;
            
        }
        nav a {
            color: #C70039;
            font-size: 1.5rem;
            padding: 10px 20px;
            text-decoration: none;
            font-weight: bold;
            background-color: black;
            margin-left: 10px;
            margin-right: 10px;
        }
        nav a:hover {
            background: #555;
        }
        .container {
            width: 80%;
            margin: 20px auto;
            background: #fff;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }
        footer {
            text-align: center;
            padding: 10px 0;
            background: #333;
            color: #fff;
            margin-top: 20px;
        }
        
        div.img_cours{
        width: 100%;
        	display:inline-block;
        	background-image: url("../img/cours_tkbd.jpg");
        	background-repeat: no-repeat;
        	background-position: center;
        
        }
        
        a.nav-link{
        	font-size:1.5rem;
        	color: #C70039;
        }
        
        h2{
        	color:#C70039;
        	border-left: 2px solid gray;
        	border-bottom: 2px solid gray;
        	background-color: silver;
        	padding: 5px 10px 5px;
        	border-radius: 0px 15px 0px 15px;
        }
        
        iframe.media {
        	margin: 10px;
        	width: 250px;
        }