.boxreseau {
    position: absolute;
    z-index: 20;
    left: 10px;
    top: 125px;
    display: flex;
    justify-content: center;
    align-items: center;
    height: calc(100% - 125px);
}
.liste-sociaux {
    list-style: none;
    display: block;
}
.liste-sociaux li {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    margin-bottom: 15px;
    background: transparent;
    height: 40px;
    border: 1px solid #acb9b2;
    border-radius: 50%;
}
.liste-sociaux a {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
}
.liste-sociaux li:last-child {
    margin-right: 0px;
}
.liste-sociaux a em {
    color: #acb9b2;
}
.liste-sociaux li:hover {
    border: 1px solid #fff;
}
.liste-sociaux li:hover a em {
    color: #fff;
}