使用方法：

1、head引入css文件

<link rel="stylesheet" href="css/style.css">

2、body引入HTML代碼

<div class="keyboard-base">
	<div class="key">~</div>
	<div class="key">1</div>
	<div class="key">2</div>
	<div class="key">3</div>
	<div class="key">4</div>
	<div class="key">5</div>
	<div class="key">6</div>
	<div class="key">7</div>
	<div class="key">8</div>
	<div class="key">9</div>
	<div class="key">0</div>
	<div class="key">-</div>
	<div class="key">+</div>
	<div class="key delete">Delete</div>
	<div class="key tab">Tab</div>
	<div class="key">Q</div>
	<div class="key">w</div>
	<div class="key">E</div>
	<div class="key">R</div>
	<div class="key">T</div>
	<div class="key">Y</div>
	<div class="key">U</div>
	<div class="key">I</div>
	<div class="key">O</div>
	<div class="key">P</div>
	<div class="key">[</div>
	<div class="key">]</div>
	<div class="key backslash">\</div>
	<div class="key capslock">CapsLock</div>
	<div class="key">A</div>
	<div class="key">S</div>
	<div class="key">D</div>
	<div class="key">F</div>
	<div class="key">G</div>
	<div class="key">H</div>
	<div class="key">J</div>
	<div class="key">K</div>
	<div class="key">L</div>
	<div class="key">;</div>
	<div class="key">'</div>
	<div class="key return">Return</div>
	<div class="key leftshift">Shift</div>
	<div class="key">Z</div>
	<div class="key">X</div>
	<div class="key">C</div>
	<div class="key">V</div>
	<div class="key">B</div>
	<div class="key">N</div>
	<div class="key">M</div>
	<div class="key">,</div>
	<div class="key">.</div>
	<div class="key">/</div>
	<div class="key rightshift">Shift</div>
	<div class="key leftctrl">Ctrl</div>
	<div class="key">Alt</div>
	<div class="key command">Command</div>
	<div class="key space">Space</div>
	<div class="key command">command</div>
	<div class="key">Alt</div>
	<div class="key">Ctrl</div>
	<div class="key">Fn</div>
</div>