body{
  background-color: white;
}

.outer-div{
  margin: 0 100px;
  padding: 20px 0;
}

.padded-div{
  padding: 20px 0;
}

.content-box{
  background-color: #DFDFDF;
  padding: 10px 15px 15px 35px;
  border-radius: 15px;
}

nav ol{
  list-style-type: square;
}

ol.h3-numbers > li::marker {
  font-size: 1.5em;
  color: #8F0303;
}

.h3-numbers li, .h4-numbers li {
  margin-bottom: 15px;
  padding-left: 5px;
}

.h3-numbers ul li::marker{
  color: #2E5401;
}

ol.h4-numbers > li::marker {
  font-size: 1.17em;
  color: #2E5401;
}

h1, h2, h3, h4{
  font-weight: normal;
}

h1, h2{
  border-bottom: 2px solid #333;
  text-align: center;
  padding: 15px;
  color: #10064D;
}

h1{
  font-size: 3em;
}

h2{
  font-size: 2em;
}

h3{
  font-size: 1.5em;
  color: #8F0303;
  
}

h4{
  font-size: 1.17em;
  color: #2E5401;
}

.comparison-wrapper {
  display: flex;
  gap: 50px;
  margin-bottom: 30px;
}

.column {
  flex: 1;
  padding: 20px;
  border-radius: 8px;
  border: 1px solid #ccc;
}

.error-col {
  background-color: #fff8f8;
  border-color: #ffcdd2;
}

.correct-col {
  background-color: #f8fff8;
  border-color: #c8e6c9;
}

.rendered-element {
  padding: 15px;
  background: #fff;
  border: 1px dashed #999;
  border-radius: 4px;
  margin-bottom: 15px;
  min-height: 60px;
  display: flex;
  align-items: center;
}

.code-block {
  background-color: #f0f0f0;
  border-radius: 8px;
  padding: 35px 15px 15px 15px;
  position: relative;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.9em;
  color: #AD0057;
  overflow-x: auto;
  white-space: pre-wrap;
  border: 1px solid #e0e0e0;
}

.code-block::before {
  content: "html code";
  position: absolute;
  top: 8px;
  left: 15px;
  font-family: system-ui, sans-serif;
  font-size: 12px;
  font-weight: bold;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

footer{
  text-align: center;
}