.bg0 {
    background-image: url('https://upload.wikimedia.org/wikipedia/commons/4/4d/BotGartenBth072.JPG');
}
.bg2 {
    background-image: url('https://upload.wikimedia.org/wikipedia/commons/thumb/8/8d/Bayreuth_1680.JPG/1024px-Bayreuth_1680.JPG');
}
.bg3 {
    background-image: url('https://upload.wikimedia.org/wikipedia/commons/thumb/f/fc/Margrafenbrunnen_Bayreuth_01_P1000750_27.10.09.jpg/800px-Margrafenbrunnen_Bayreuth_01_P1000750_27.10.09.jpg');
}

.black{
    color: yellow;
    font-size: 5em;
}

.center{
	text-align: center;
}

.border{
	padding-right:10px;
	padding-left:10px;
}