function CS_gross () {
  for (var i = 0; i < document.getElementsByTagName("p").length; i++) {
    document.getElementsByTagName("p")[i].style.fontSize = "12pt";
  }
  for (var i = 0; i < document.getElementsByTagName("h1").length; i++) {
    document.getElementsByTagName("h1")[i].style.fontSize = "18px";
  }
    for (var i = 0; i < document.getElementsByTagName("h2").length; i++) {
    document.getElementsByTagName("h2")[i].style.fontSize = "16px";
  }
    for (var i = 0; i < document.getElementsByTagName("h3").length; i++) {
    document.getElementsByTagName("h3")[i].style.fontSize = "16px";
  }
}


function CS_mittel () {
  for (var i = 0; i < document.getElementsByTagName("p").length; i++) {
    document.getElementsByTagName("p")[i].style.fontSize = "11pt";
  }
  for (var i = 0; i < document.getElementsByTagName("h1").length; i++) {
    document.getElementsByTagName("h1")[i].style.fontSize = "16px";
  }
      for (var i = 0; i < document.getElementsByTagName("h2").length; i++) {
    document.getElementsByTagName("h2")[i].style.fontSize = "14px";
  }
    for (var i = 0; i < document.getElementsByTagName("h3").length; i++) {
    document.getElementsByTagName("h3")[i].style.fontSize = "14px";
  }
}

function CS_normal () {
  for (var i = 0; i < document.getElementsByTagName("p").length; i++) {
    document.getElementsByTagName("p")[i].style.fontSize = "10pt";
  }
  for (var i = 0; i < document.getElementsByTagName("h1").length; i++) {
    document.getElementsByTagName("h1")[i].style.fontSize = "14px";
  }
      for (var i = 0; i < document.getElementsByTagName("h2").length; i++) {
    document.getElementsByTagName("h2")[i].style.fontSize = "12px";
  }
    for (var i = 0; i < document.getElementsByTagName("h3").length; i++) {
    document.getElementsByTagName("h3")[i].style.fontSize = "12px";
  }
}