how to target child elements in css code example

Example 1: child css

p:nth-child(2)
 	{     
 		background: red;
 	}

Example 2: how to target all child elements css

.wrapper * {
    color: blue;
    margin: 0 100px; /* Only for demo */
}
.myTestClass > * {
    color:red;
    margin: 0 20px;
}

Example 3: how to use child selectors in css

ul li { margin: 0 0 5px 0; }
ul > li { margin: 0 0 5px 0; }

Example 4: how to target a child element in css

target="_blank"