* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: Arial, sans-serif;
  background-color: #f6f6f6;
  color: #222;
  line-height: 1.6;
  padding: 20px;
}

h1, h2 {
  color: #0055aa;
  margin-bottom: 10px;
}

header, footer {
  text-align: center;
  padding: 20px;
  background: #ddd;
  margin-bottom: 20px;
}

a {
  color: #0077cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

main {
  display: grid;
  gap: 20px;
}

.platforms, .iframe-section, .terminals, .howto, .issues, .binaries, .source-code {
  background: #fff;
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 0 8px rgba(0,0,0,0.1);
}

.iframe-section h1 {
  font-size: x-large;
}

.iframe-section h1 span {
  color: cornflowerblue;
}

.download-section {
  display: flex;
}

.platforms {
  display: flex;
  flex-wrap: wrap;
}

.binaries {
  display: flex;
  font-size: x-large;
  align-self: right;
  width: fit-content;
}

.source-code {
  display: flex;
  width: fit-content;
  align-self: left;
  font-size: x-large;
  align-items: center;
}

.source-code svg {
  align-self: center;
}

ul {
  list-style: square inside;
  padding-left: 1em;
}

.platform-icon {
  width: auto;
  height: 5em;
  display: flex;
}

.br-small {
  display: none;
}

.demo-frame {
  width: 100%;
  height: 300px;
  border: 1px solid #ccc;
}

#windows-big {
  height: 5em;
  display: flex;
  width: auto;
}

#lw-sep {
  width: 5em;
  height: 1em;
  display: flex;
}

#linux-big {
  width: auto;
  height: auto;
  display: flex;
}

#lm-sep {
  width: 5em;
  height: 1em;
  display: flex;
}

#macos-big {
  width: auto;
  height: auto;
  display: flex;
}

@media (max-width: 768px) {
  body {
    padding: 10px;
  }

  .demo-frame {
    height: 200px;
  }

  .br-small {
    display: block;
  }

  .download-section {
    display: block;
  }
}

@media (max-width: 408px) {

  #lw-sep {
    width: 0;
  }
  #lm-sep {
    width: 0;
  }
}