app/assets/stylesheets/provider/_toggled_inputs.scss
fieldset[data-behavior~=toggle-inputs] {
border: 1px dashed $border-color;
background-color: rgba(0,0,0,0.05);
&.packed {
border: none;
background-color: transparent;
}
legend {
cursor: pointer;
margin-top: 15px;
margin-bottom: 0;
width: auto;
}
}