.h1 {
    margin-left: 10px;
    padding-top: 30px;
    color: #ffffff;
}
.backgr {
    background-image: url(../media/forest-7471935_960_720.jpg);
    background-repeat: no-repeat;
    background-attachment: fixed;
    background-size: cover;
    background-position: center center;
}
.a {
    display: inline-block;
    justify-content: center;
    background-color: #8e1fd3;
    color: yellow;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    font-size: 20px;
    margin: 4px 10px;
    cursor: pointer;
    border-radius: 5px;
    border: none;
  }
  
 .a:hover {
    background-color: black;
  }
  .margin_2 {
    margin-right: 30px;
  }