body {
  font-family: Arial, sans-serif;
  background-color: #8bc6ee; /* Light gray using HEX value */
}

header {
  background-image: url('https://edube.org/uploads/media/default/0001/04/portfolio.jpg');
  background-repeat: no-repeat;
  background-position: center;
  background-color: cmyk(0, 100, 100, 0); /* Red using CMYK value */
  padding: 30px;
  text-align: center;
  border: 2px inset black;
}

h1 {
  color: rgb(0, 128, 0); /* Green using RGB value */
}

h2 {
  color: hsl(210, 100%, 50%); /* Blue using HSL value */
  font-style: italic;
  text-decoration: underline;
}

main {
  background: linear-gradient(to bottom, lightblue, white);
}

section {
  margin: 20px;
}

ul {
  list-style-type: square;
}

li {
  line-height: 1.6;
  padding-left: 10px;
}

a:link {
  color: darkblue;
}

a:visited {
  color: purple;
}

a:hover {
  color: red;
}

img {
  width: 100%;
  max-width: 600px;
  border-radius: 10px;
  box-shadow: 5px 5px 10px gray;
}
img{
  filter: grayscale(50%);
}


/* New styles for back to home link */
#bkto { 
    display: inline-block;
    width: 500px;
    margin: 20px;
    margin-left: 500px;
    padding: 10px 15px;
    background-color: #37eeb1;
    color: rgb(73, 68, 68);
    text-decoration: none;
    text-align: center;
    border-radius: 5px;
    border-bottom: #336088 5px solid;
    
}