html, body{
    margin: 0;
    padding: 0;
    background-color: #A3E1FA;
    background-image: url('../img/header_bg.jpg');
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

.header{
    
}
.header .content{
    height: 450px;
    width: 960px;
    margin: 0 auto;
    padding-top: 200px;
    text-align: center;
}
.header .content .screenshot{
    height: 100%;
    width: auto;
    float: left;
}

.header .content .info{
    display: inline-block;
    float: right;
    margin-top: 80px;
}

.header .content .info .download{
    margin-top: 60px;
    float: left;
}

.header .content .info .download a{
    display: inline-block;
    width: 170px;
    height: 56px;
    border-radius: 8px;
    background-color: rgba(256, 256, 256, 0.6);
    color: rgba(0, 0, 0, 0.8);
    text-align: center;
    line-height: 56px;
    font-size: 16px;
    font-weight: bold;
    text-decoration: none;
}

.header .content .info .download a img{
    width: 30px;
    height: 30px;
    float: left;
    margin-top: 13px;
    margin-left: 8px;
    margin-right: -6px;
}

.header .content .info .download a:hover{
    background-color: rgba(256, 256, 256, 1);
}

.foot{
    position: fixed;
    padding: 60px 0 30px 0;
    text-align: center;
    font-size: 12px;
    bottom: 0;
    left: 0;
    right: 0;
    color: #ffffff;
}
.foot a{
    color: #ffffff;
    text-decoration: none;
}