@charset "utf-8";
.img_block{
    width: 100%;
    display: block;
}
.family_padding{
    max-width: 1280px;
    margin:auto; 
}
.family_div1{
    position: relative;
}
.family_div1 .img_block{
    position: relative;
    top:0;
    left:0;
    z-index: 0;
}
.alphaBtn {
    position: absolute;
    z-index : 1;
    background-image:url(about:blank); 
    /*background-color: rgba(0,0,0,0.2); */
}
.a_btn{
    width      : 26%;
    padding-top: 11%;
    top        : 25%;
    right       : 10%;
}
.b_btn{
    width      : 40%;
    padding-top: 5%;
    top        : 64%;
    left       : 5%;
}
.family_div3 {
     position: relative;   
}
.family_div3 .img_block{
    position: relative;
    top:0;
    left:0;
    z-index: 0;
}
.c_btn{
    width      : 34%;
    padding-top: 5%;
    bottom        : 43%;
    right       : 23%;
    z-index : 2;
}