:root {
  --header_height: 65px;
  --header_height_border: 1px;
}

html {
  margin: 0;
  border: 0;
  padding: 0;
  min-height: calc(100vh - var(--header_height) - var(--header_height_border));
}

body{
  margin: 0;
  border: 0;
  padding: 0;
  margin-top: var(--header_height);
  min-height: calc(100vh - var(--header_height));
  display: flex;
  flex-direction: column;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: stretch;

}

.full_main{
  display: flex;
  flex: 1;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

main {
  background: cyan;
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.navbar {
  margin: 0;
  border-bottom: 1px rgb(184, 184, 184) solid;
  padding: 0;
  min-height: calc(var(--header_height));
}