*
  {
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
  margin: 0;
  padding: 0;
  }

html, body
  {
  height: 100%;
  }

body 
  {
  background-image: url("alpsBg3.jpg");
  background-size: cover;
  background-color: Turquoise; 
  padding: 10px;
  }

#alusta
  {
  background-color: rgba(200, 250, 230, 0.5);
  display: grid;
  grid-gap: 5px;
  grid-template-rows: 100px auto 20px;
  height: 100%;
  margin: 0 auto;
  max-width: 100%;
  padding: 5px;
  width: 800px;
  border-radius: 4px;
  }

#alusta>*
  {
  background-color: rgb(160, 210, 190);

  background-color: rgba(200, 250, 230, 0.5);
  }

header
  {
  display: grid;
  grid-gap: 5px;
  grid-template-rows: auto 40px;
  }

header h1
  {
  line-height: 1.0;
  margin-top: 15px;
  text-align: center;
  }

menu
  {
  background-color: rgb(140, 190, 180);
  padding: 5px;
  }

menu button
  {
  background-color: rgb(130, 220, 210);
  border: outset 2px rgb(190, 240, 230);
  height: 30px;
  min-width: 100px;
  }

menu button:hover
  {
  background-color: rgb(170, 230, 210);
  cursor: pointer;
  }

main
  {
  display: grid;
  justify-content: center;
  align-content: center;
  background-color: rgba(200, 250, 230, 0.5);
  }

table
  {
  width: 400px;
  height: 450px;

  max-width: 100%;
  max-height: 100%;

  background-color: rgba(255, 255, 255, 0.8);
  }

td
  {
  border: solid 1px grey;
  text-align: center;
  width: 20%;
  height: 16%;
  font-size: 2rem;
  xbackground-color: rgba(255, 255, 255, 0.5);
  }

input 
  {
  width: 100%; 
  height: 30px;
  border: solid 1px grey;
  background-color: #eee;
  }

.c1 {background-color: hsla(360, 100%, 52%, 0.20);}
.c2 {background-color: hsla(193, 100%, 52%, 0.20);}
.c3 {background-color: hsla(152, 100%, 45%, 0.20);}