Question

I wonder if anybody can explain why in the first created div the background color will not work and it does in the second example.

$("<div/>", {
width:300,
height:400,
backgroundColor:"#425412", //background-color does not work
text: "hello there"
}).appendTo("body");

Note: without the background-color property the div will be created.

// works as defined including background-color
$("<div style='width:300; height:400; background-color:#425412;'>hello there</div>").appendTo("body");

Does the first method have restrictions?

Answer 1

You need to make the backgroundColor property a key of a css object.

$("<div/>", {
    width:300,
    height:400,
    css: {
        backgroundColor:"#425412"
    },
    text: "hello there"
}).appendTo("body");

jsFiddle.