/* h1 {
    color: red;
}

h3 {
    color: green;
} */

/* button {
    color: blue;
} */

/* .header,
button {
    color: green;
} */

.css1 .blue{
    color: blue;
}

.red{
    color:hsl;
}

.test-margin {
    margin: 20px;
    border:1px solid black;
    /* padding: 10px 20px 30px 40px; */
    padding-top: 40px; 
}