* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border: 2px solid salmon;
}
h1.text-red {
    color: red;
}
p {
    color:aqua;
}
p {
    color: blue;
}
button {

    color: blueviolet;
}
.box {
    width: 100px;
    height: 100px;
    background-color: blueviolet;
    margin: 50px;
    color: aliceblue;
    padding: 30px;
    border: 5px solid red;
    font-size: 10px;
}