/* Header styles */
.header-wrap {
    max-width: 800px;
    margin: 0 auto 100px;
    align-items: center;
    justify-content: center;
}
.main-image {
    width: 100%;
    height: 300px;
    background-image: url('../img/main.png');
    background-size: contain;
    background-position: center;
    background-repeat: no-repeat;
}
header nav {
    max-width: 520px;
    margin:    10px auto 0;
}
header nav ul {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 2px solid #424242;
    list-style: none;
    padding-top: 10px;
}
header nav ul li {
    margin: 0 15px;
}
header nav ul li.current a {
    color: #62cffd;
    font-weight: bold;
}
header nav ul li a {
    color: #424242;
    text-decoration: none;
    padding: 10px 15px;
    font-size: 20px;
}
header nav ul li a:hover {
    color: #62cffd;
    transition: 0.3s;
    font-weight: bold;
}


@media screen and (max-width: 428px) { 
    header nav ul li {
        margin: 0 1px;
    }

    header nav ul li a {
        padding: 5px 8px;
        font-size: 14px;
    }
}