ninesurvey/src/ninesurvey-1.0/public/styles/css/local.css

.craue_formflow_buttons {
    display: inline-block;
    width: 100%;
}
.craue_formflow_buttons .btn-secondary, 
.craue_formflow_buttons .btn-primary,
.craue_formflow_buttons .btnnextstep
{
    float:right;
}