.tile_div a {
    display: inline-block;
    float: center;
    height: 50px;
    width: 280px;
    font-size: 18px;
    margin-right: 20px;
    margin-top: 15px;
    margin-bottom: 5px;
    border-radius: 10px;


    background-image: url(./images/button_left.png);
    background-color: #ccc;
    text-align: center;
    line-height: 50px;
    text-decoration: none;
}

.title_div a.last {
    margin-right: 0;
  display: flex;
    
}

.clear {
    clear: both;
}