how to put a rainbow gradient on text css code example

Example 1: text color as gradient css

.gradient-text {
    background-color: #f3ec78;
    background-image: linear-gradient(45deg, #f3ec78, #af4261);
    background-size: 100%;
    -webkit-background-clip: text;
    -moz-background-clip: text;
    -webkit-text-fill-color: transparent; 
    -moz-text-fill-color: transparent;
}

Example 2: gradient text color css

h4 {
background: linear-gradient(to right, #494964, #6f6f89);
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;}