css
/* styles.css */

* {
    box-sizing: border-box;
    border: 4px solid #000;
    padding: 0;
    margin: 0;
}

body {
    background-color: #f2f2f2;
    font-family: 'Open Sans', sans-serif;
    line-height: 1.5;
    font-size: 16px;
    color: #000;
}

h1 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 16px;
}

h2 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 8px;
}

p {
    margin: 8px 0;
}

a {
    text-decoration: none;
    color: #333;
    transition: color 0.2s ease-in-out;
}

a:hover {
    background-color: #f2f2f2;
}

/* Colors */

:root {
    --pink: #ff69a9;
    --brighter-yellow: #f7dc6a;
    --deep-blue: #1a1d2b;
}

body {
    --text-color: #333;
    --background-color: #f2f2f2;
}

h1, h2, h3, a {
    color: var(--brighter-yellow);
}

a {
    border-bottom: 4px solid var(--brighter-yellow);
    color: var(--text-color);
}

a:visited {
    border-bottom: 4px dashed var(--brighter-yellow);
    color: #666;
}

a:hover {
    background-color: #f2f2f2;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

/* Buttons */

button {
    background-color: var(--deep-blue);
    border: none;
    color: #fff;
    padding: 8px 16px;
    font-size: 16px;
    border-radius: 4px;
}

button:hover {
    background-color: #222;
}

button:focus {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

button:active {
    transform: scale(0.9);
}

/* Links */

a:target {
    background-color: #222;
    border-bottom: 4px solid var(--brighter-yellow);
}

/* Drop Shadows */

.drop-shadow {
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

/* Miscellaneous */

img {
    width: 200px;
    height: auto;
    margin: 16px;
    border: 4px solid #000;
}

img:hover {
    transform: scale(1.1);
}