div {
    color: green;
}

.block {
    color: red;
}

#id-block {
    color: purple;
}

[data-example] {
    color: brown;
}

[data-example="value2"] {
    color: rgb(187, 5, 5);
}

.block3,
.block4,
.block5 {
    color: yellow;
}

div.blue-block {
    color: blue;
}

div .orange {
    color: orange;
}

.parent>.child {
    color: rgb(70, 70, 233);
}