a.btn_27 {
    display: block;
    text-align: center;
    vertical-align: middle;
    text-decoration: none;
    width: 120px;
    padding: 10px 16px;
    color: #000000;
    font-weight: bold;
    background: #FFD600;
    position: relative;
    transition: 0.3s ease-in-out;
    font-size: 16px;
    border-radius: 5px;
}

.service_base a.btn_27 {
    display: block;
    text-align: center;
    vertical-align: middle;
    text-decoration: none;
    width: 150px;
    padding: 10px 16px;
    color: #000000;
    font-weight: bold;
    background: #FFD600;
    position: relative;
    transition: 0.3s ease-in-out;
    font-size: 16px;
    border-radius: 5px;
}

a.btn_27:hover {
    background: #ffffff;
    color: #FFD600;
}

a.btn_27:before,
a.btn_27:after {
    box-sizing: inherit;
    content: "";
    position: absolute;
    border: 3px solid transparent;
    width: 0;
    height: 0;
}

a.btn_27:before {
    top: 0;
    left: 0;
}

a.btn_27:after {
    bottom: 0;
    right: 0;
}

a.btn_27:hover:before,
a.btn_27:hover:after {
    width: 100%;
    height: 100%;
}

a.btn_27:hover:before {
    border-top-color: #FFD600;
    border-right-color: #FFD600;
    transition: width 0.15s ease-out, height 0.15s ease-out 0.15s;
}

a.btn_27:hover:after {
    border-bottom-color: #FFD600;
    border-left-color: #FFD600;
    transition: border-color 0s ease-out 0.2s, width 0.15s ease-out 0.2s, height 0.15s ease-out 0.3s;
}

/* a.b_news {
    position: absolute;
    left: 51%;
    top: 650px;
} */

a.b_contact{
    width: 140px;

}