ul, li {
    margin:0;
    padding:0;
    list-style:none;
} 

#photos {
    width:690px;
}

#photos ul {
    background:#99c;
    border:1px solid #000;
    padding:10px 0;
    zoom:1; /* IE: trigger layout to clear floats */
}

#photos ul:after { /* clear floats for non-IE */
    clear:both;
    content:'';
    display:block;
}

#photos li {
    float:left; 
    display:inline; /* IE: double margin bug */
    margin-left:10px;
    width:126px;
}

#photos li a {
    background:#ccc;
    border:1px solid #000;
    display:block;
    padding:10px;
}

#photos li a img {
    display:block; /* Gecko: kills extra bottom-margin */
    border-color:blue;
}