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

html {
    font-size: 62.5%; /*10/16 16px is the default font size*/
} /* could use :root. same thing as using html as the selector*/

body {
    font-family:Verdana, Geneva, Tahoma, sans-serif;
    font-size: 1.4rem; /* 1 rem is = to 10px, 1.5rem = 15px; 3rem = 30px; */
    background-color: #222;
    color: #EEE;
    width: 100vw; height: 100vh;
}

#disc {
    width: 20rem; height: 20rem;
    position: absolute; /*being specific*/
    top: 2rem; right: 2rem;
    background-image: linear-gradient(45deg, #141, #363);
    border-radius: 50%;
    transform: rotate(30deg);
}

#disc p {
    text-align: center;
    line-height: 20rem;
    font-size: 12rem;
}

h1 {
    /* border: 4px solid red; */
    padding-right: 20rem;
    margin: 12px;
    width: calc(100% - 25rem);
    font-weight: normal;
    line-height: 1.4;
    font-size: 3.6rem;
}

h1 strong {
    color: yellow;
}

article {
   background-image: linear-gradient(220deg, #121, #343);
   margin: 2rem; 
   padding: 12px;
}

h2 {
    text-align: center;
    border-bottom: 2px solid #eee;
    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; /*keeps them squares*/
}

section {
    position: relative;
}

#display1 {
    text-align: center;/*centering children due to this declaration being on the parent of the children*/
    border: 2px solid blue;
    height: 250px;
    margin-top: 8px;
}

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

#display2 {
    border: 2px solid skyblue;
    height: 250px;
    margin-top: 12px;
    display: flex; /*goes with the parent, not the child.*/
    margin-bottom: 12px;
    justify-content: center;
    gap: 5px;
}

#display2 * {
    height: 15vw;
}

#display3 {
    border: 2px solid skyblue;
    margin-bottom: 12px;
    height: 250px;
    text-align: center;
}

#display3 * {
    display: inline;
    padding: 20px;
    
}

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

.bar {
    height: 40px;
    background-color: gold;
    margin: 50px 0;
    position: sticky;
    top: 0; left: 0;
    text-align: center;
}