.container-apropos {
      padding: 70px 0px;
}

#imgMontagne {
    filter: opacity(70%);
}
#imgFredericDoidi {
    width: 150px;
    height: auto;
    align-self: center;
}

.colAPropos {
    padding: 20px;
    align-self: center;
}

.colAProposImg {
    align-self: center;
}

.titreAPropos{
    color: #16a7c4;
    margin-bottom: 15px;
}

.iconsReseau {
    width: 35px;
    height: auto;
    margin: 10px;
}

.section-references {
    background-image: 
      linear-gradient(
        rgba(255, 255, 255, 0.754),
      
        rgba(62, 144, 188, 0.725),
        rgba(68, 93, 108, 0.647)
      ),
    url("../img/mountain.jpg");
    background-position: center;
    width: auto;
    height: auto;
    background-size: cover;   
}