#dropinboxv2cover{
width: 370px; /*change width to desired */
position:absolute; /*Don't change below 4 rules*/
z-index: 100;
overflow:hidden;
visibility: hidden;
}

#dropinboxv2{
width: 350px; /*change width to above width-20. */
border: 1px solid #666666; /*Customize box appearance*/
background-color:#FFFFFF;
position:absolute; /*Don't change below 3 rules */
left: 0;
top: 0;
}