body {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
    background-image: url("../imgs/sun-tornado.svg");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
  }

main {
    flex: 1 0 auto;
  }

.my_btn {
  padding-right: 10px;
  padding-left: 10px;
}