what does padding mean in css code example

Example 1: css padding

padding: 5px 10px 15px 20px; //top right bottom left

padding: 10px 20px;//top & bottom then left & right

padding-top: 5px; //just top padding
padding-right: 10px; //just right padding
padding-bottom: 15px; //just bottom padding
padding-left: 20px; //just left padding

Example 2: padding css

padding:10px 5px 15px 20px;
means
top padding is 10px
right padding is 5px
bottom padding is 15px
left padding is 20px

Example 3: padding left

.yourClass {
  padding-left: 50px; // or
  padding-left: 1%; // to scale it in relation to its parent
}

Example 4: html padding

<h2 style="padding-top: 20px; padding-right: 20px; padding-bottom: 20px; padding-left: 20px">London</h2>