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

body {
  margin: 0px;
  padding: 0px;
  background-color: rgba(59, 184, 115, 0.5);
  background-repeat: repeat-x;
  background: #eeaeca;
  background: radial-gradient(
    circle,
    rgba(238, 174, 202, 1) 0%,
    rgba(148, 187, 233, 1) 100%
  );
}

p sup {
  color: red;
  font-size: 15px;
}

.box {
  background-color: brown;
  width: 100px;
  height: 100px;
  border: 2px solid black;
  position: sticky;
  top: 0px;
  left: 0px;
}

p {
  font-family: "Bitcount Prop Single", system-ui;
  font-size: 20px;
}

/* class */
.blue-font {
  color: blue;
  font-size: 20px;
}

/* id */
#main-paragraph {
  color: green;
  font-size: 18px;
}

.link {
  font-weight: bold;
  text-decoration: underline;
}

/* Background Color */
.color-background {
  background-color: #3498db; /* Blue */
  border: 3px solid #333;
  color: white;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* Background Image */
.image-background {
  background-image: url("../images/nasa-logos-03.jpg");
  background-repeat: no-repeat;
  background-position: center;
  background-attachment: fixed;
}

/* Background Shorthand */

.shorthand-background {
  background: #f0f0f0 url("texture.png") no- repeat center fixed;
}

/* Multiple Backgrounds */
.complex-background {
  background-image: url("overlay.png"), url("base-image.jpg");
  background-position: top left, center;
  background-repeat: no-repeat, no-repeat;
}