.strikethrough {
    position: relative;
}

.strikethrough:before {
    position: absolute;
    content: "";
    left: 0;
    top: 50%;
    right: 0;
    border-top: 1px solid;
    border-color: inherit;

    -webkit-transform: rotate(-5deg);
    -moz-transform: rotate(-5deg);
    -ms-transform: rotate(-5deg);
    -o-transform: rotate(-5deg);
    transform: rotate(-5deg);
}