* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-weight: 400;
}
body {
    font-family: "Consolas";
}
header, footer {
    background: black;
    color: white;
    padding: 20px;
}
main {
    background: white;
    color: black;
}
header {
    margin-bottom: 25px;
}
.main-text {
    font-size: 1.47em;
    font-weight: 800;
    text-decoration: none;
    color: white;
}
.header-nav {
    display: flex;
}
.header-nav a {
    flex: auto;
    color: grey;
    text-decoration: none;
    font-size: 0.7em;
}
.hero {
    background: linear-gradient(135deg, #5555ff, #ff00ff, #ff5555);
    color: white;
    font-weight: 500;
    padding: 30px;
    text-align: center;
    border-radius: 0px;
}
.hero h2 {
    font-weight: 700;
}
.stack {
    text-align: center;
}
footer {
    margin-top: 25px;
}