*{ margin:0; padding:0;}
button:focus{ outline:none}
.btn{ border:0; background:#ccc; padding:10px 20px; cursor:pointer; width:50px; height:30px; float:left}
.btn.on{ background:#09C;}/*切换你按钮背景*/
.hide{ background:#C03; padding:20px; width:150px; display:none;}
.hide.on{ display:block}/*内容显示与否*/

.btn1{ border:0; background:#ccc; padding:10px 20px; cursor:pointer; width:50px; height:30px; float:left}
.btn1.on{ background:#09C;}/*切换你按钮背景*/
.hide1{ background:#C03; padding:20px; width:150px; display:none;}
.hide1.on{ display:block}/*内容显示与否*/