.container {
    margin: auto;
    max-width: 1040px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

[class*="child"] {
    width: 200px;
    height: 200px;
    background-color: orange;
    color: white;
    transition: 1s;
    border: 2px brown solid;
    box-sizing: border-box;

    display: flex;
    align-items: center;
    justify-content: center;
}

.child1:hover {
    background-color: green;
}

.child2:hover {
    border-radius: 50%;
}

.child3:hover {
    transform: translate(200px, 0);
}

.child4:hover {
    transform: rotate(720deg);
}

.child5:hover {
    transform: rotateX(180deg);
}

.child6:hover {
    transform: rotateY(360deg);
}

.child7:hover {
    transform: skewX(10deg);
}

.child8:hover {
    transform: skewY(10deg);
}

.child9:hover {
    transform: scale(120%);
}

.child10:hover {
    width: 400px;
}