<p>Element Selector</p>
<p class="my-class">Class Attribute</p>
<p id="my-unique-id">Id Attribute</p>
<p data-custom="my-custom-data">Attribute Selector</p>
<p>nth-child Selector</p>

/* Element CSS Selector */
p{
  background: pink;
}

/* Class Attribute CSS Selector */
.my-class{
  background: green;
}

/* Id Attiribute CSS Selector */
#my-unique-id{
  background: yellow;
}

/* Attribute CSS Selector */
[data-custom="my-custom-data"]{
  background: orange;
}

/* nth-child CSS Selector */
/* The Fifth <p>Paragraph Tag */
p:nth-child(5){
  background: teal;
}