.al-content-center {
    align-content: center;
}

.justify-content-center {
    justify-content: center;
}

.width-200px {
    width: 200px;
}

.width-300px {
    width: 300px;
}

.width-400px {
    width: 400px;
}

.height-200px {
    height: 200px;
}

.height-300px {
    height: 300px;
}

.height-400px {
    height: 400px;
}

.top-20pc {
    top: 20%;
}

.top-30pc {
    top: 30%;
}

.top-35pc {
    top: 35%;
}

.top-40pc {
    top: 40%;
}

.top-50pc {
    top: 50%;
}

.left-20pc {
    left: 20%;
}

.left-30pc {
    left: 30%;
}

.left-40pc {
    left: 40%;
}

.left-50pc {
    left: 50%;
}