hello,
I just pass to the last version of unigui - extjs 6.7 (1.90.0.1501)
before i was in v1.0.0.1422
and this work fine :
.myselenveloppes .x-grid-row-selected .x-grid-cell{
border-right: 0px solid;
border-left: 0px solid;
border-top: 4px solid ;
border-bottom: 4px solid ;
border-bottom-color:#F2F2F2 !important;
border-left-color:#F2F2F2 !important;
border-top-color: #F2F2F2 !important;
}
but i don't know how do i do now..