background image not got set

Question

body {

background-image:url('Images/2.jpg');

}

* {

margin: 0px;

padding:0px;

}

#menu ul{

list-style:none;

}

#menu ul li{

background-color:cornflowerblue;

border:solid 1px white;

width:190px;

height:35px;

text-align:center;

line-height:35px;

float:left;

position:relative;

border-radius:10px;

}

#menu ul li a {

text-decoration:none;

color:#fff;

display:block;

}

#menu ul li a:hover{

background-color:#ff6a00;

color:#fff;

border-radius:10px;

}

#menu ul ul{

position:absolute;

display:none;

}

#menu ul li > ul li{

background-color:#18e27f;

color:#edeef8;

border:solid:1px:white;

border-radius:10px;

}

#menu ul li:hover > ul {

display:block;

border-radius:10px;