Rotate image around center css3

you need to spin only the img

.world img
{
-webkit-animation: spin1 2s infinite linear;
-moz-animation: spin1 2s infinite linear;
-o-animation: spin1 2s infinite linear;
-ms-animation: spin1 2s infinite linear;
animation: spin1 2s infinite linear;
}

or modify display of div.world so it it shrinks on image (inline-block,inline-table,table) or even float it


You are not restricting the size of the div.

In fact you don't need the div at all, you can just apply the class to the image:

.world
{
-webkit-animation: spin1 2s infinite linear;
-moz-animation: spin1 2s infinite linear;
-o-animation: spin1 2s infinite linear;
-ms-animation: spin1 2s infinite linear;
animation: spin1 2s infinite linear;
    display: block;
}
 
@-webkit-keyframes spin1 {
0% { -webkit-transform: rotate(0deg);}
100% { -webkit-transform: rotate(360deg);}
}
@-moz-keyframes spin1 {
0% { -moz-transform: rotate(0deg);}
100% { -moz-transform: rotate(360deg);}
}
@-o-keyframes spin1 {
0% { -o-transform: rotate(0deg);}
100% { -o-transform: rotate(360deg);}
}
@-ms-keyframes spin1 {
0% { -ms-transform: rotate(0deg);}
100% { -ms-transform: rotate(360deg);}
}
@-keyframes spin1 {
0% { transform: rotate(0deg);}
100% { transform: rotate(360deg);}
} 
<img class="world" src="http://upload.wikimedia.org/wikipedia/commons/thumb/e/ef/Erioll_world_2.svg/256px-Erioll_world_2.svg.png"/>

you need to set the size of the element and specify the transform-origin property

-webkit-transform-origin: 50% 50%;
-moz-transform-origin: 50% 50%;
-o-transform-origin: 50% 50%;
transform-origin: 50% 50%;
width: 256px;
height: 256px;

Example fiddle : http://jsfiddle.net/RbXRM/3/