CSS разбил двойную границу
.test {
background:white;
padding:15px;
border:1px dashed #000;
outline:1px dashed #000;
outline-offset:-5px;
}
Kind Kookaburra
.test {
background:white;
padding:15px;
border:1px dashed #000;
outline:1px dashed #000;
outline-offset:-5px;
}