html, body{
    height: 100%;
	 margin: 0;
}

body{
    display: flex;
    flex-direction: column;
	min-height: 100vh;
}

main{
    flex: 1;
}

.hero{
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)),
    url("../images/tech.jpg");

    background-size: cover;
    background-position: center;

    height: 80vh;

    display: flex;
    align-items: center;
    justify-content: center;

    color: white;
}

.card{
    border: none;
    transition: 0.3s;
}

.card:hover{
    transform: translateY(-10px);
}

.logo {
    height: 40px;
    width: auto;
}