VIP26/day6/css/index.css

.box {
    width: 200px;
    height: 200px;
    background: #00f;
    margin-top: 20px;
    color: #ff0;
    font-size: 30px;
    font-weight: bold;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.special {
    background: #f00;
    /* position: fixed; */
    /* position: sticky; */
    /* position: static; */
    /* top: 150px; */
    position: absolute;
    top: 100px;
    left: 150px;
    /* left: 100px; */
}