body {
    margin: 0;
    font-family: sans-serif;
}

.hero {
    /* Sizing */
    width: 100vw;
    height: 100vh;
    
    /* Flexbox stuff */
    display: flex;
    justify-content: center;
    align-items: center;
    
    /* Text styles */
    text-align: center;
    color: white; /* ADD THIS LINE */
    
    /* Background styles */
    background-image: linear-gradient(rgba(0, 0, 0, 0.5),rgba(0, 0, 0, 0.5)),url("images/hero-image.jpg");
    background-size: cover;
    background-position: center center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.hero h1 {
    /* Text styles */
    font-size: 5em;
    
    /* Margins */
    margin-top: 0;
    margin-bottom: 0.5em;
}

.hero h2 {
    margin-top: 0;
    margin-bottom:2em;
}

.hero .btn {
    /* Positioning and sizing */
    display: inline;
    width: 200px;
    
    /* Padding and margins */
    padding: 1em;
    margin-top: 300px;
    margin-left: 100px;
    margin-right: auto;
    
    /* Text styles */
    color: white;
    text-decoration: none;
    font-size: 1.5em;
    
    /* Border styles */
    border: 3px solid white;
    border-radius: 20px;
    
    /* Background styles */
    background-color: rgba(120, 187, 134, 0.8)
}

.unsplash-footer img {
    display: block;
    position: absolute;
    left: 0px;
    bottom: 0px;
    max-width: 50%;
}
#unsplash-footer-img {
    height: auto;
    width: auto;
    max-width: 100px;
}

.airbnb-logo {
    height: auto;
    width: auto;
    max-width: 20px;
}