@media screen and (max-width:815px) {
	.onlyBigScreen {
		display: none;
	}

    div.header{
        padding: 5px 7px;
        left: 20px;
    }

    div.header a img {
        margin-bottom: 5px;
    }
}

@media screen and (max-width:500px) {
	div.header{
		padding: 2px 5px;
		left: 10px;
	}

	div.header a img {
		width: 70px;
		height: 42px;
		margin-bottom: 2px;
	}
}