h1 {
    position: relative;
    display: inline-block;
    padding: 0 55px;
}
h1:before, h1:after {
    content: '';
    position: absolute;
    top: 50%;
    display: inline-block;
    width: 45px;
    height: 1px;
    background-color: black;
}
h1:before {
    left:0;
}
h1:after {
    right: 0;
}

/** -- h2 -- */
h2 {
    position: relative;
    display: inline-block;
    padding: 0 40px;
}
h2:before, h2:after {
    content: '';
    position: absolute;
    top: 50%;
    display: inline-block;
    width: 35px;
    height: 1px;
    background-color: black;
}
h2:before {
    left:0;
}
h2:after {
    right: 0;
}