Site with video/style.css
@import url("//db.onlinewebfonts.com/c/1fed4454352f201d52b65ca5480afb2d?family=Playlist");
@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@200&family=Poppins:ital,wght@0,200;0,300;0,500;1,200&display=swap');
*{
    box-sizing: border-box;
    font-family:"Playlist";
    margin:0;
    padding:0;
}
video {
    width: 1500px;
    height: 900px;
    object-fit: cover;
  }
.showcase{
    position: absolute;
    right:0;
    width: 100%;
    min-height: 100vh;
    padding: 100px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:#111;
    transition:0.5s;
    color:#fff;
    z-index:2;
}

.showcase header{
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    padding: 40px 100px;
    z-index: 1000;
    display: flex;
    align-items:center;
    justify-content: space-between;
}
.logo{
    text-transform: uppercase;
    cursor: pointer;
}

.toggle{
    position: relative;
    width: 60px;
    height: 60px;
    background: url("https://img.icons8.com/ios-filled/50/000000/menu.png");
    background-repeat: no-repeat;
    background-position: center;
    background-size: 30px;
    cursor: pointer;
}

.showcase.active {
    right:300px;

}

.toggle.active {
    background: url("https://img.icons8.com/ios-glyphs/30/000000/delete-sign.png");
    background-position: center;
    background-repeat: no-repeat;
    background-size: 25px;
    cursor: pointer;
}

.showcase video{
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity:0.8;
}

.overlay {
    position: absolute;
    top:0;
    left:0;
    width: 100%;
    height: 100%;
    background: #03a9f4;
    mix-blend-mode: overlay;
}

.text{
    position: relative;
    z-index: 10;
}

.text h2{
    font-size: 7em;
    font-weight:800;
    line-height:1em;
     
}

.text h3{
    font-size: 5em;
    font-weight:700;
    line-height:1em;
     
}

.text p{
    font-size:1.8em;
    margin: 20px 0;

    font-weight: 400;
    max-width: 700;
}
.showcase .logo{
    font-family: "Poppins";
}

.text a{
    font-family: "poppins";
    display:inline-block;
    font-size: 1em;
    background: #fff;
    padding: 10px 30px;
    text-decoration: none;
    color:#111;
    margin-top: 10px;
    text-transform: uppercase;
    letter-spacing:2px;
    transition: 0.2s;
}

.text a:hover{
    letter-spacing: 6px;
}

.social {
    position: absolute;
    bottom:20px;
    z-index:10;
    display: flex;
    justify-content: center;
}

.social li{
    list-style: none;
}

.social li a{
    display: inline-block;
    filter:invert(1);
    margin-right: 20px;
    transform: scale(1);
    transition: 0.5s;
}

.social li a:hover{
    transform: scale(0.5) translateY(-15px);
}

.menu {
    position: absolute;
    top:0;
    right:0;
    width: 300px;
    height: 100%;
    display:flex;
    align-items: center;
    justify-content: center;
}

.menu ul{
    position: relative;

}
.menu ul li{
    list-style: none;
}

.menu ul a{
    text-decoration: none;
    font-size: 27px;
    line-height: 70px;
    color: #111;
}

.menu li a:hover{
    color: #03a9f4;

}

@media(max-width:798px){
    .showcase,
    .showcase header{
        padding: 40px;
    }

    .text h2{
        font-size:3em;
    }

    .text h3{
        font-size: 2em;;
    }
}