* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    background-color: lightgray;
    display: flex;
    flex-direction: column;
    height: 100vh;
    align-items: center;    
    padding: 1rem 0;
    text-align: center;
}

.slack_name, img, p, .track {
    margin-bottom: 0.5rem;
}

img {
    width: 400px;
}

@media screen and (max-width: 600px) {
  img {
    width: 300px;
  }
}

div a {
color: black; 
text-decoration: none;  
}

div a:hover {
    text-decoration: underline;  
    color: red;      
}