.seikyusho {
    display: inline-block;
    text-align: center;
    color: #fff;
    line-height: 1.4em;
    max-width: 250px;
    padding: 15px 15px;
    transition: all .15s;
    border: 1px solid #fff;
    background: #000 url(../img/ico_triangle.png) right 3px bottom 3px no-repeat;
    margin: auto;
    margin-top:15px;
  }
  .seikyusho:hover {
    color: #fff;
    background-color: #e61a19;
  }
  .seikyusho:visited {
    color: #fff;
    text-decoration: none;
    outline: none;
  }