img {
    border: 3px solid #282c34;
}
.container-fluid {
    height: 100vh;
    background-color: #282c34;
    display: flex;
    justify-content: center;
    align-items: center;
}
.container-fluid > div {
    width: 85%;
    min-width: 300px;
    max-width: 500px;
}
.card {
    width: 100%;
    }
    .social-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    }
.btn a, .btn a:hover {
color: white;
text-decoration: none ;
}