a.btn_02 {
    display: block;
    text-align: center;
    vertical-align: middle;
    text-decoration: none;
    width: 220px;
    margin: 40px auto;
    padding: 2rem 4rem;
    font-weight: bold;
    font-size: 20px;
    border: 2px solid #0067BC;
    background: #0067BC;
    color: #fff;
    transition: 0.5s;
    border-radius: 900px;
}
a.btn_02:hover {
    color: #0067BC;
    background: #fff;
}
.cam_end {
    display: block;
    text-align: center;
    vertical-align: middle;
    text-decoration: none;
    width: 300px;
    margin: 40px auto;
    padding: 2rem 4rem;
    font-weight: bold;
    font-size: 20px;
    border: 2px solid #0067BC;
    background: #0067BC;
    color: #fff;
    transition: 0.5s;
    border-radius: 900px;
}
@media screen and (max-width: 960px){
.header{
    padding: 10px 20px;
    width: 920px;
}
}