.artical-page {
    height: 100vh;
    width: 230px;
    background-image: linear-gradient(108deg, #000 0%, rgb(68, 0, 90) 100%);
    box-shadow: -7px 0px 17px 3px #2e004e;
    display: inline-block;
    padding-left: 18px;
    padding-right: 10px;
}

.step-line {
    width: 7%;
    background-color: #cacaca;
    top: 0%;
    position: absolute;
}

body {
    width: 10000px;
}