#slider{
    width: 100vw;
    height: calc(100vh - 100px);
    position: relative;
}
#slider .text{
    position: absolute;
    width: 100%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 50px;
    text-align: center;
    z-index: 5;
}
#slider .text h1,
#slider .text h2{
    color:#fff;
}
#slider .text h1{
    text-transform: uppercase;
}
#img_slider{
    width: 100%;
    height: 100%;
    position: relative;
}
#img_slider::before{
    content: '';
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    z-index: 3;
    background-color: rgba(0, 0,0, 0.55);
}
#img_slider img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}
#img_slider img:nth-child(1){
    display: block;
}