.slider {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 400px;
    background-image: url('../images/img_bg_2.jpg');
    background-size: cover;
    background-position: center;

}
.slider-title {
    font-family: 'Roboto', sans-serif;
    font-size: 3.5em;
    font-weight: bold;
    color: white;
 text-shadow: 0 0 3px #C71B1B, 0 0 3px black;}
 .slider-title-strong {
     color: #C71B1B;
      text-shadow: 0 0 3px white, 0 0 3px #C71B1B;}

 }