#Lier, #Copier, #Modifier { float: right; } .btn { display: inline-block; text-decoration: none; color: black; background-color: #eee; text-align: center; letter-spacing: .5px; border: none; border-radius: 2px; height: 36px; line-height: 36px; outline: 0; padding: 0 2rem; text-transform: uppercase; box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12); margin: 0 10px 0 10px; } .btn-center { margin: auto; margin-top: 10px; margin-bottom: 10px; display: block; } #lien_viaf { box-shadow: none; color: grey; margin: 10px; margin:auto; display: block; width: 150px; margin-top: 10px; margin-bottom: 10px; } #lien_viaf[href] { box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12); color: black; }