.header{
    position: relative;
    float: center;
    top: -25px;
    text-align: center;
    width: 100%;
    min-height: 500px;
    background-origin:border;
    background-size:cover;
    background: repeating-linear-gradient(135deg,#00e71f,rgb(114, 0, 108),#000000);
    z-index: 0;
    
  }
  .header-text1{
   position: relative;
   text-align: center;
   Font-size: 125px;
   color: white;
   float: center;
   font-weight: bolder;
   top: 100px;
  }
  @media screen and (max-width: 800px) {
    .header{min-height: 400px;}
    .header-text1{font-size: 80px;}
  }