h2{
    font-family: Helvetica,Arial,sans-serif;
    text-align: center;
    font-size: 36px;
    line-height: 1.3;
}

h3{
    font-size: 20px;
    text-align: center;
    line-height: 1.4;
    margin-top: 0;
}

article:hover {
    box-shadow: 0 0 2px 0 rgba(0,0,0,.15),0 1px 3px 0 rgba(0,0,0,.15);
    transform: scale(1.02);
    text-decoration: none;

} 
article{
    box-shadow: 1px 1px 1px 1px rgba(0,0,0,.15);
    cursor: pointer

} 

p{
    font-family: Helvetica,Arial,sans-serif;
    text-align: center;
    font-size: 16px;
    line-height: 1.4;
}
img{
    width: 280px;
    height: 181px;
    border-top: 5px;
    background-size: cover;

}

.plain_transparent{
    text-decoration: none;
    text-decoration-color: transparent;
    color: black;
}


.colorbouton:hover {
    background-color: rgb(16, 85, 163);
}
.colorbouton{
    color: #fff;
    background-color:#438de0;
    border: 0px;
    padding: 12px 12px 12px 12px;
    font-size: 16px;
    cursor: pointer;
}
.section1{
    display: flex;
    flex-direction: row;
    justify-content: center;
    width: 99%;
    height: 427px;
}
.section2{
    display: flex;
    display: inline-flex;
    font-family: Helvetica, Arial,  sans-serif;
    flex-direction: row;
    justify-content: center;
    text-align: center;
    align-items: center;
    width: 99%;
    height: 200px;
}

.transparence{
    border-radius: 5px; 
    width: 285px;
    height: 427px;
    margin-right: 30px;
    display: block;

}
.carbone_negatif{
    border-radius: 5px;
    width: 285px;
    height: 427px;
    margin-right: 30px;
    display: block;
    
}
.vie_privee{
    border-radius: 5px;
    width: 285px;
    height: 427px;
    margin-right: 30px;
    display: block;
    
}