body, html {
    margin: 0;
    padding: 0;
    font-family: 'Arial', sans-serif;
    overflow-x: hidden;

}

#intro {
    font-size: 40px;
    width: 100%;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 2;
    background-color: #171616;
    transition: 1s;
}

.txt-header{
    position: absolute;
    top:50%;
    left: 50%;
    transform: translate(-50%,-50%);
    color: white;
}

#mainContent {
    background-color: #fff;
    min-height: 100vh;
    /* Your styling for the main content goes here */
}

.introText{

    position: relative;
    display: inline-block;
    bottom: -30px;
    opacity: 0;

}

.introText.active{

    bottom: 0;
    opacity: 1;
    transition: ease-in-out 0.5s;

}

.introText.fade{

    bottom: 250px;
    opacity: 0;
    transition: ease-in-out 0.5s;

}