body {
background-color: blue;
}
h3{margin:0;}

#abc{
  color: black;
  text-align: center;
  font-style: italic;
  font-size: xx-large;
  background-color: silver;
  text-decoration-line: underline;
}

p {
  font-family: verdana;
  font-size: 21px;
  margin-left: 20px;
  border-left: 30px;
}
li{
  list-style-type: none;
  font-size: 30px;
}
hr{
 background-color: green;
 background-size: auto;
}
ul{
 margin-left: 30px;
}
#cdf.cdf{
  text-decoration-line: underline;
  text-decoration-color: black; 
}
#a.b{
  text-align: center;
}
#xyz{
  color: red;
  background-color: black;
}
#cdf.abc{
    font-size: xx-large;
    color: red;
    text-align: left;
}
div{
  display: flex;
  align-items: center;
  justify-content:center;
}
img{
  height:300px;
  width:500px;
}