.v {
    margin-left: 5px;
}

.data-sub-c {
    position: relative;
    margin: 10px;
    overflow-y: hidden;
    cursor: pointer;
}

.data-sub-item {
    padding: 10px;
    margin: unset;
}

.code-bg {
    position: absolute;
    width: 100%;
    height: 102px;
    top: 101px;
    left: 0;
    background: slategray;
}

.code-bg > img {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    width: 100px;
    height: 100px;
}