Answers for "css body size"

setting height and width on body

body {
	min-height: 100vh;
	width: 100%;
}

css size

#myID {
  height: 100px; /* Sets the height */
  width: 200px; /* Sets the width */
}
/* or... */
.myClass {
  height: 220px; /* Sets the height */
  width: 40px; /* Sets the width */
}
/* They both work! */