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

/* :root also works as html selector*/
html {
    font-size: 62.5%;
}

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif; 
  background-color: #222;
  font-size: 1.4rem;
  color: #eee;
  min-height: 100vh;


}

#disc {
    background-image: linear-gradient(45deg,#141, #363);
    width: 20rem; height: 20rem;
    border-radius: 50%;
    text-align: center;
    line-height: 20rem;
    font-size: 9rem;
    font-weight: bold;
    position: fixed;
    top: 2rem; right: 2rem;
    transform: rotate(20deg);
}   

h1 {
margin: 12px;
width: calc(100% - 25rem);
font-weight: normal;
line-height: 1.4;
font-size: 3.5rem;
}

h1 strong {
    color: orangered;
}

article {
    background-image: linear-gradient(200deg, #111, #333);
    margin: 2rem;
    padding: 12px;

}

h2 {
    text-align: center;
border-bottom: 2px solid#555;
padding: 8px;
font-weight: normal;
text-transform: lowercase;
letter-spacing: .8rem;
font-size: 2.5rem;
}

article h3, article div {
    border : 8px solid hotpink;
    width: 15vw;
    aspect-ratio: 1/1;
    vertical-align: middle;
}

section {
    position: relative;
}

#display1 h3, #display1 div {
    display: inline-block;
    border: 8px solid yellow;
    vertical-align: middle;
    text-align: center;
}



#display2 {
    border: 8px solid lightblue;
    height: 250px;
    margin-bottom: 12px;
    display: flex; /*goes with the parent*/
    justify-content: center; 
    gap: 5px;
}

#display2 * {
    height: 15vw;
}

#display3 {
    border: 2px solid lightblue;
    margin-bottom: 12px;
    text-align: center;
    height: 250px;
}
#display3 *{
    display: inline;
    padding: 20px;
   
}

h3 {
    color: yellow;
    position: absolute;
    top: 10px; left: 10px;
}

#display3 h3 {
    border: 8px solid white;
    position: relative;
    top: 100px; left: -150px; 
}

.bar {
    height: 50px;
    background-color: hotpink;
    margin: 50px 0;
    position: sticky; top: 0; left: 0;
    text-align: center;
}
.submenu {
    position: relative;
    bottom: 0rem; right: 2rem;
    padding-top: 100%;
    color: white;

}