body {
  margin: 0;
  padding: 0;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #37373700;
  z-index: 999;
  height: 60px;
}

header h1 {

  margin-top: 9px;
  left: 1, 5%
}

#logo {
  grid-column: 1/4;
  font-family: helvetica;
}

a {
  /* link!!!!!!*/
  text-decoration: none;
  color: #808080;

  font-size: 100px;
  font-size: medium;
  transition: all 0.4s linear;
  padding-left: 40px;


}

a:hover {
  color: rgb(255, 255, 255)
}

.logo_margin {
  margin-top: 20px;
  grid-column: 1/6;
}

.index {
  margin-top: 20px;
  margin-left: 30px;
  grid-column: 9/10;
  font-family: helvetica;

}

.sources {
  grid-column: 4/6;
  margin-top: -87px;
}


html {
  scroll-behavior: smooth;
}

/* body {
  font-family: Helvetica, sans-serif
} */

.grid_header {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  grid-template-rows: repeat(1, minmax(90px, auto));
  grid-gap: 10px;

}