img[src*='#left'] { 
    float: left;
    max-width: 48%;
    height: auto;
}
img[src*='#right'] { 
    float: right;
    max-width: 48%;
    height: auto;
}
img[src*='#center'] { 
    display: block; 
    margin: auto; 
    max-width: 70%;
    height: auto;
}