.center-gallery{
    max-width: 100%;
    margin: 0 auto;
}

.slider_item{
overflow: hidden;
    height: 250px;
}
.slider_item_text {
    margin: auto;
    position: absolute;
    max-width: 80%;
    height: 90%;
    padding: 0;
    top: 10%;
    left: 80px;
    color: #5d5e5e;
    font-weight: bold;
    line-height: 18px;
}
.slider_item_text h3, .banner_item_text h3 {
    font-size: 19px;
    font-family: 'Roboto', Arial, Helvetica, sans-serif;
    font-weight: bolder;
    color: #333d42;
    padding: 15px 0 10px 0;
    margin: 0;
}