Achtergrond dat blijft staan tijdens het scrollen

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<style> body{ background: url(https://wichhart.nl/img/gif/5.gif) no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; } </style>

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body { background-image: url("https://velpzuid.nl/pics/vzbg.jpg"); background-position: center; background-repeat: no-repeat; background-attachment: fixed; background-size: cover; }

Achtergrond over het hele scherm

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body { background: url(https://velpzuid.nl/pics/vzbg.jpg) no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; }