@import url('https://fonts.googleapis.com/css2?family=Open+Sans:ital,wght@0,300..800;1,300..800&display=swap');

* {
  box-sizing: border-box;
  font-family: "Open Sans", sans-serif;
}

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}
body {
  background: #8abe45;
  --s: 100px; /* control the size*/
  --c1: #8abe45;
  --c2: #83b842;
  
  background:
    conic-gradient(var(--c1)   135deg,var(--c2) 0 270deg,
                    var(--c1) 0 315deg,var(--c2) 0)
    0/var(--s) var(--s);
  height: auto;
  min-height: 100%;
  padding-bottom: 20px;
}
header {
  background: white;
  padding: 20px 0 0;
  text-align: center;
}
  header img {
    height: 110px;
    object-fit: cover;
    width: 300px;
  }
h1 {
  font-size: 28px;
  line-height: 1em;
  margin-bottom: 40px;
  text-align: center;
  text-transform: uppercase;
}
  h1::after {
    background: #8abe45;
    content: "";
    display: block;
    margin: 20px auto;
    height: 5px;
    width: 120px;
  }
  h1 small {
    font-weight: 400;
  }
.info {
  background: white;
  border-radius: 10px;
  margin: 20px auto;
  max-width: 90%;
  padding: 10px 30px 30px;
  width: 400px;
}
.info.detail {
  width: 800px;
}
  .info label {
    display: block;
    font-weight: bold;
    margin-bottom: 30px;
  }
    .info label small {
      color: red;
      display: block;
      font-weight: 400;
      position: absolute;
    }
  .info input[type=text] {
    border: none;
    border-bottom: 1px solid lightgray;
    display: block;
    line-height: 30px;
    outline: none !important;
    width: 100%;
  }
  .button,
  .info button {
    background: #8abe45;
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    font-size: 20px;
    line-height: 1em;
    padding: 8px 30px;
    text-decoration: none !important;
    transition: all 400ms;
  }
  .button:hover,
  .info button:hover {
    background: black;
  }