body 
{
    -webkit-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -box-sizing: border-box;
}

div
{
    -webkit-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -box-sizing: border-box;
    vertical-align:top;
}

span
{
    display:inline-block;
    -webkit-box-sizing: border-box;
    -ms-box-sizing: border-box;
    -moz-box-sizing: border-box;
    -box-sizing: border-box;
    vertical-align:top;
}