.a-center{text-align:center}.btn-home{display:inline-block;height:40px;line-height:40px;padding:0 20px;text-align:center;cursor:pointer;border-radius:5px;color:#fff;background-color:var(--mainColor)}.btn-home:hover{background:#333;color:#fff}.padding-top-15{padding-top:15px}.margin-bottom-40{margin-bottom:40px}