#divDigitando 
{
    height: 30px;
    width: 320px;
    justify-content: center;
    text-align: center;
    float: left;
}

.rodapechat
{
    height: 10%;
    width: -moz-available;
}

.divImgArquivo, .divImgSom, .divImgNotificacao, .divImgSair
{
    width: 30px;
    height: 30px;
    float: left;
    margin-right: 2px;
}

.divImgSair{
    text-align: center;
    justify-content: center;
}

.divImgNotificacao, .divImgSair{
    cursor: pointer;
}

.divImgNotificacao span 
{
    color: white;
    position: relative;
    top: 9px;
    left: 9px;
}