*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.btn-default{
    text-decoration: none;
    background: url(../img/system/nav_gv.png) repeat 0px 0px;
    transition-duration: 0.5s;
    width: 130px;
    height: 43px;
    display: inline-block;
    text-align: center;
    line-height: 43px;
    cursor: pointer;
    /* float: left; */
    /* margin: 10px 2px 10px 2px; */
    font: 18px/43px 'PingFang';
    color: #066197;
    border: none;
    outline: none;
	/* animation-timing-function:ease-in-out;
	animation-name:breathe;
	animation-duration:2700ms;
	animation-iteration-count:infinite;
	animation-direction:alternate; */
}
.btn-default:hover {
    background: url(../img/system/nav_gv.png) repeat 0px -43px;
    color: #1d7eb8;
    box-shadow: 0 0 6px #1d7eb8;
    transition-duration: 0.5s;
    animation-name:none;
}
@-webkit-keyframes breathe {
	0% {
        box-shadow: 0 0 1px #24a0ea;
    }
    100% {
        box-shadow:0 1px 8px #1d7eb8;
    }
}