body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    

}

header {
    background-color: #131a2d;
    color: #fff;
    text-align: center;
    padding: 1em 0;
    display: flex;
    justify-content: center;
    align-items: center;
   
    
}



header img{
    width: 120px;
    
}

main {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    padding: 2em;
   
}

.descrip{
    
    text-align: center;
    max-width: 80%;
}
a{
    text-decoration: none;
    color: #fff;
}

.bloc {
    background-color: #f0efef;
    border: 1px solid #ccc;
    margin: 1em;
    padding: 1em;
    text-align: center;
    width: 300px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
    border-radius: 10px;
}



.bloc img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
}

.bloc h2 {
    font-size: 1.5em;
    margin: 0.5em 0;
}

.bloc button {
    background-color: #007BFF;
    color: #fff;
    border: none;
    padding: 0.8em 1.9em;
    cursor: pointer;
    border-radius: 10px;
}

.bloc button:hover {
    background-color: #0056b3;
    padding: 1em 2.1em;
}

footer {
    background-color: #131a2d;
    color: #fff;
    text-align: center;
    padding: 1em 0;
    position: relative;
    bottom: -50px;

}
.img_footer{
    width: 100px;
    margin: 0;

    padding: 0;
}


h4{
    position: relative;
    top: -20px;
}

@media (max-width: 650px) { 

    header h1{
        display: none;
    }

    h1{
        text-align: center;
    }
}