.input-group-text {
    position: absolute;
    top: 11px;
    right: 16px;
    background: transparent;
    border: none;
}
.prel {
    position : relative;
}
.crel {
    position : relative;
}
.crel .input-group-text {
    position: absolute;
    top: 44px;
    right: 16px;
    background: transparent;
    border: none;
}