html {
  font-size: 20px;
  font-family: Helvetica, Arial, sans-serif;
  color: white;
  background-image: linear-gradient(180deg, rgb(0 0 0 / 100%) 25%, rgb(76 129 171 / 100%) 96%);
}

table {
  font-size: 20px;
  font-family: Helvetica, Arial, sans-serif;
  color: white;
}

p {
text-align: left;
}

ul {
  display: flex;
  list-style: none;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
  padding: .5em;
  font-size: 20px;
  font-weight: bold;
  text-align: center;
  background: black;
}

.block,
li {
  margin-left: auto;
  margin-right: auto;
  width: 50%;
  padding: .5em;
}

h1 {
  font-size: 36px;
  font-family: Times, serif;
  text-transform: uppercase;
}

h2 {
  font-size: 28px;
  font-family: Helvetica, Arial, sans-serif;
  text-transform: capitalize;
}

h3 {
  font-size: 18px;
  font-family: Helvetica, Arial, sans-serif;
  font-style: italic;
  font-weight: normal;
}

a:link {
  color: dodgerblue;
}  
a:visited {
  color: red;
}


.positioned {
  position: absolute;
  background: yellow;
}

.box {
  width: 400px;
  height: 400px;
}



.cover {
  object-fit: cover;
  position: absolute; top: 50px; left:100px;
}

.contain {
  object-fit: contain;
}