@media only screen and (max-width:350px) {
    .btn_abrir {
        bottom: 55px;
        right: 5px;
    }

    .page_title {

        font-size: 12px;
    }

    .subtitulo {
        font-size: 12px;
    }
    
 .social_link a{
        width: 45px;
        height: 45px;
        line-height: 45px;
        bottom: 5px; 
        font-size: 25px;   
    }
    .whatsapp{
    width: 60px !important;
    height: 60px !important;
    font-size: 30px !important;
    line-height: 60px !important;
}
    h4{
        text-align: center;
        vertical-align: middle;
        font-size: 12px;
        position: relative;
        bottom: 50px;
    }  

}