css
/* styles.css */
:root {
  --primary-color: #FFD700;
  --secondary-color: #FF69B4;
  --background-color: #F7F7F7;
  --text-color: #000000;
  --border-color: #000000;
  --shadow-color: #000000;
  --link-color: #000000;
  --link-hover-color: #000000;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border: 4px solid var(--border-color);
  background-color: var(--background-color);
  color: var(--text-color);
  font-family: 'Open Sans', sans-serif;
  transition: none;
  transform: none;
  -webkit-transform: none;
  -ms-transform: none;
  -moz-transform: none;
  -o-transform: none;
}

body {
  font-family: 'Open Sans', sans-serif;
  line-height: 1;
  font-size: 16px;
  background: linear-gradient(45deg, var(--background-color), var(--background-color));
  background-size: 100px 100px;
  background-position: 0 0;
  background-repeat: no-repeat;
  -webkit-background-size: 100px 100px;
  -ms-background-size: 100px 100px;
  -moz-background-size: 100px 100px;
  -o-background-size: 100px 100px;
  background-clip: border-box;
  background-clip: padding-box;
  border: none;
  box-sizing: border-box;
  width: 100%;
  height: 100vh;
  margin: 0 auto;
  padding: 0;
  font-family: 'Open Sans', sans-serif;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: 0px;
  font-stretch: none;
  text-align: center;
  text-justify: center;
  font-weight: bold;
  text-rendering: optimal-1;
  text-transform: none;
  -webkit-text-size-adjust: none;
  -ms-text-size-adjust: none;
  -moz-text-size-adjust: none;
  -o-text-size-adjust: none;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
  text-transform: none;
  -webkit-text-transform: none;
  -ms-text-transform: none;
  -moz-text-transform: none;
  -o-text-transform: none;
}

h1 {
  color: var(--link-color);
  text-shadow: 0px 0px 0px var(--shadow-color);
  font-family: 'Open Sans', sans-serif;
  font-size: 48px;
  text-align: center;
  line-height: 1.2;
  letter-spacing: -0.05px;
  font-weight: bold;
  text-rendering: auto;
  text-transform: none;
  -webkit-text-size: 24px;
  -ms-text-size: 24px;
  -moz-text-size: 24px;
  -o-text-size: 24px;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

h2 {
  color: var(--link-color);
  text-shadow: 0px 0px 0px var(--shadow-color);
  font-family: 'Open Sans', sans-serif;
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: 0px;
  font-weight: bold;
  text-rendering: auto;
  text-transform: none;
  -webkit-text-size: 18px;
  -ms-text-size: 18px;
  -moz-text-size: 18px;
  -o-text-size: 18px;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

p {
  color: var(--text-color);
  text-align: center;
  font-size: 18px;
  line-height: 1.2;
  letter-spacing: 0px;
  font-weight: normal;
  text-rendering: auto;
  text-transform: none;
  -webkit-text-size: 18px;
  -ms-text-size: 18px;
  -moz-text-size: 18px;
  -o-text-size: 18px;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

a {
  color: var(--link-color);
  text-decoration: none;
  font-size: 18px;
  text-align: center;
  line-height: 1.2;
  letter-spacing: 0px;
  font-weight: bold;
  text-rendering: auto;
  text-transform: none;
  transition: all 0.2s ease;
  -webkit-transition: all 0.2s ease;
  -ms-transition: all 0.2s ease;
  -moz-transition: all 0.2s ease;
  -o-transition: all 0.2s ease;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

a:hover {
  color: var(--link-hover-color);
  text-decoration: none;
  transition: all 0.2s ease;
  -webkit-transition: all 0.2s ease;
  -ms-transition: all 0.2s ease;
  -moz-transition: all 0.2s ease;
  -o-transition: all 0.2s ease;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

img {
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 100vh;
  display: block;
  margin: 0 auto;
  padding: 0;
  border: 4px solid var(--border-color);
  background-color: var(--background-color);
  background-size: 100px 100px;
  background-position: 0 0;
  background-repeat: no-repeat;
  background-clip: border-box;
  background-clip: padding-box;
  border-radius: 0;
  border-style: solid;
  border-width: 4px;
  box-sizing: border-box;
  font-size: 0;
  line-height: 0;
  letter-spacing: 0;
  font-weight: 0;
  text-rendering: auto;
  text-transform: none;
  -webkit-text-size: 0;
  -ms-text-size: 0;
  -moz-text-size: 0;
  -o-text-size: 0;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

img:hover {
  border: 4px solid var(--shadow-color);
  background-color: var(--shadow-color);
  background-size: 100px 100px;
  background-position: 0 0;
  background-repeat: no-repeat;
  background-clip: border-box;
  background-clip: padding-box;
  border-radius: 0;
  border-style: solid;
  border-width: 4px;
  box-sizing: border-box;
  font-size: 0;
  line-height: 0;
  letter-spacing: 0;
  font-weight: 0;
  text-rendering: auto;
  text-transform: none;
  -webkit-text-size: 0;
  -ms-text-size: 0;
  -moz-text-size: 0;
  -o-text-size: 0;
  text-orientation: greek;
  text-overflow: clip;
  text-overflow-algorithm: ellipsis;
  text-overflow-color: #000000;
  text-overflow-surface: default;
  -webkit-text-overflow: none;
  -ms-text-overflow: none;
  -moz-text-overflow: none;
  -o-text-overflow: none;
  text-overflow-surface: none;
  text-rendering: optimal-1;
  -webkit-text-rendering: optimal-1;
  -ms-text-rendering: optimal-1;
  -moz-text-rendering: optimal-1;
  -o-text-rendering: optimal-1;
}

body > * + * {
  margin: 0;
  border: none;
  padding: 0;
}