a.main_btn,
button.main_btn {
    border: none;
    display: inline-block;
    background-color: #fff;
    width: 269px;
    height: 50px;
	text-align:center;
	line-height:2.3;
    text-decoration: none;
    border-radius: 30px;
    -webkit-transition: .5s;
    -o-transition: .5s;
    transition: .5s;
    color: #212121;
    font-weight: 500;
    letter-spacing: 2.5px;
    position: relative
}
.main_btn:hover {
    background-color: #f7c300;
}
a.main_btn span.bg,
button.main_btn span.bg {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: url(../img/btn_bg.png);
    display: block;
    top: 0;
    left: 0;
    -webkit-transition: .5s;
    -o-transition: .5s;
    transition: .5s
}