body { margin: 0; height: 0; }
.m-four { background: url(../images/nofound/bj.jpg) no-repeat; width: 100%; height: 670px; padding-top: 280px; }
.m-f-img { width: 406px; margin: 0 auto; }
.f-txt { width: 339px; margin: 0 auto; font-size: 26px; text-align: center; color: #666; margin-top: 30px; line-height: 40px; }
    .f-txt a { color: red; }