style.css

* {
    text-decoration: none;
}

.navbar {
    font-family: calibri;
    padding-right: 15px;
    padding-left: 15px;
}

body {
    background-color: aliceblue;
    height: fit-content;
}

.navdiv {
    display: flex;
    align-items: center;
    justify-content: space-around;
    align-items: center;
}

.logo img{
    height: 90px;
}

li {
    list-style: none;
    display: inline-block;
}

li a {
    color: black;
    font-size: 25px;
    font-weight: bold;
    margin-right: 30px;
}

li a:hover {
    color: aqua;
    transition: .3s;
}

button {
    background-color: lightgoldenrodyellow;
    margin-left: 10px;
    border-radius: 10px;
    padding: 10px;
    width: 90px;
}

button a {
    color: black;
    font-weight: bold;
    font-size: 20px;
}

button:hover {
    background-color: lightgray;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
}

.left, .right {
    flex-basis: 50%;
}

.left h1{
    font-size: 50px;
    margin-bottom: 20px;
}

.left {
    max-width: 450px;
    padding-left: 70px;
}

.left p {
    font-size: 20px;
    margin-bottom: 20px;
}

button {
    background-color: lightgoldenrodyellow;
}

.right {
    height: 90vh;
    background: url('astro.png') no-repeat;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    padding: 0 10%;
}