1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
<!doctype html> <title>CSS Test Reference</title> <style> body { margin: 0 } .first { width: 100px; height: 50px; background: lime; } .space { height: 50px; } .second { width: 100px; height: 100px; background: lime; } </style> <div class="first"></div> <div class="space"></div> <div class="second"></div>