intro.css

body {
    margin: 0;
    padding: 0;
    background-color: black;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    color: white;
    text-align: center;
    overflow-x: hidden;
}

i {
    color: green;
}

#logo {
    height: 100px;
    width: 100px;
    border: none;
    outline: none;
    border-radius: 50%;
}

#intro {
    display: flex;
    padding: 20px;
}

#gs {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
    height: 50px;
    width: 200px;
    background-color: green;
    color: white;
    font-size: 20px;
    font-weight: bold;
    border: none;
    outline: none;
    border-radius: 10px;
    transition: all 1s ease;
}

#gs:hover {
    transform: scale(1.5);
    cursor: pointer;
}

#preview_img {
    height: 280px;
    width: 500px;
    transform: translate(250px, 10px);
}

#g_img {
    height: 100px;
    width: 100px;
    border: none;
    outline: none;
    border-radius: 50%;
}

#github-osource {
    border: 5px solid white;
    margin: 0 auto;
    width: 500px;
    border-radius: 10px;
}