gemokpat

doctype html
html
  head
    title Slim Examples
    meta name="keywords" content="template language"
    link rel="stylesheet" href="table_image.css" 
  body
    #block1.block
      a *{href: '#block1'} Hide
    #block2.block
      a *{href: '#'} Show Block 1

body {
  display: flex;
  height: 100vh;
}

#block1 {
  flex: 0 0 30%;
  background-color: #ccc;
}

#block2 {
  flex-basis: 100%;
  background-color: #eee;
}

#block1:target {
  display: none;
}