:root {
--primaryColor:var(black);
--padding: 8%;
}

*{
    padding: 0;
    margin: 0;
}
body {
    background-image: linear-gradient( to right,rgba(50, 50, 131, 0.795),rgba(0, 0, 0, 0.801));
    height: 100vh;
    
    display: flex;
    
  
}

.back-video {
position: absolute;
right: 0;
bottom: 0;
left: 0;
width: 100%;
z-index: -1;
}

h1 {
    color: aliceblue;
    padding-top: 2rem;
    align-items: left;
    margin-right: 20rem;
    margin-left: 2rem;
    font-size: 2rem;
}

h2 {
    color: white;
    font-size: 4rem;
    align-items: center;
    padding-top: 19rem;
    background-position: 9rem;
}
h4 {
margin-top: 1.5rem;
    font-size: large;
    color: rgb(12, 12, 12);
}
mark {
    background-color: rgb(29, 52, 87, 0.425);
}
span {
    color: var(--primaryColor);
}

nav {
    justify-content: space-between;
    display: flex;
    min-width: fit-content;
}

nav ul li {
    list-style-type: none;
    display: inline-block;
    margin: 0.8rem 1.5rem;
    align-items: center;
    margin-top: 3rem;
    
}
nav ul li a {
    color: aliceblue;
    text-decoration: none;
    transition: 0.4s;
}
nav ul li a:hover {
    color: rgb(0, 0, 0);
}
hr {
background-color: antiquewhite;
width: 26rem;
visibility: hidden;
padding-bottom: 4rem;
}

.btn {
    background-color: rgb(10, 3, 37);
    color: aliceblue;
    text-decoration: none;
    font-weight: bold;
    padding: 1.21rem 2.57rem;
    border-radius: 30px;
    font-size: large;
    font-size: 22px;
    
}