.blockH--horizont{
    overflow: hidden;
}
.blockH--horizont span:before {
    width: 1000px;
    background: #000;
    height: 1px;
    position: absolute;
    content: "";
    top: 17px;
    right: 103%;
}
.blockH--horizont span:after {
    width: 1000px;
    background: #000;
    height: 1px;
    position: absolute;
    content: "";
    top: 17px;
    left: 103%;
}
.blockH--horizont span {
position: relative;
}