.login-btn {
    height: 4vh;
    width: 6vw;
    background-color: black;
    color: white;
    border: none;
    border-radius: 5vh;
    cursor: pointer;
    z-index: 1;

    position: fixed;
    right: 5vw;
    top: 2.5vh;
    font-weight: bold
}

.login-btn:hover{
    background-color: #333;
}

@media(max-width: 768px) {
    .login-btn{
        height: 4vh;
        width: 20vw;
    }
}