body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    margin: 0;
}

.cross {
    position: relative;
    width: 100px;
    height: 100px;
}

.line {
    position: absolute;
    background-color: white;
}

.horizontal-line {
    width: 100%;
    height: 2px;
    top: 50%;
    transform: translateY(-50%);
}

.vertical-line {
    height: 100%;
    width: 2px;
    left: 50%;
    transform: translateX(-50%);
}