.okbutton {
    position: relative;
    width: 100%;
    border: solid 2px #eee;
    height: 40px !important;
    background-color: #455c11;
    color: #FFF !important;
    font-weight: 700 !important;
    font-size: 16px !important;
    box-sizing: content-box;
    display: inline-block;
    cursor: pointer;
    border-radius: 20px;
    padding: 4px;
    margin-top: 20px;
}

@media (max-width: 720px) {
    #botonenviar {
        margin: 10px!important;
        width: 90%!important;
    }
    #formulario label {
        width: 88%!important;
        text-align: center!important;
    }
    .popup_50 #clave_nueva_r {
        width: 88% !important;
        margin-bottom: 10px!important;
    }
}