.bloc-thumb-info{
    margin:10px 200px 10px 0px;
    padding-top:10px;
    border-top:1px solid grey;
}

a.remove_field {
    text-decoration: none;
}

.add_field_button::before{
    display: inline-block;
    width: 20px;
    height: 20px;
    font-size: 20px;
    line-height: 1.4;
    font-family: dashicons;
    text-decoration: inherit;
    font-weight: 400;
    font-style: normal;
    vertical-align: top;
    text-align: center;
    content: "\f132";
    padding-right:5px;
}