CSS Anatomy Map

img[src*='winter'] {
  height: 50px;
}

img[src*='summer'] {
  height: 100px;
}
The first ruleset looks for an img element 
with an attribute of src that contains the 
string 'winter', and sets the height to 50px.

CSS Anatomy
Ruleset Terms	Inline Style Terms
Selector—The beginning of the ruleset used to target the element that will be styled.	Opening Tag—The start of an HTML element. This is the element that will be styled.
Declaration Block—The code in-between (and including) the curly braces ({ }) that contains the CSS declaration(s).	Attribute—The style attribute is used to add CSS inline styles to an HTML element.
Declaration—The group name for a property and value pair that applies a style to the selected element.	Declaration—The group name for a property and value pair that applies a style to the selected element.
Property—The first part of the declaration that signifies what visual characteristic of the element is to be modified.	Property—The first part of the declaration that signifies what visual characteristic of the element is to be modified.
Value—The second part of the declaration that signifies the value of the property.	Value—The second part of the declaration that signifies the value of the property.