style.css

/* http://meyerweb.com/eric/tools/css/reset/
   v2.0 | 20110126
   License: none (public domain)
*/

html,
body,
div,
span,
applet,
object,
iframe,
h1,
h2,
h3,
h4,
h5,
h6,
p,
blockquote,
pre,
a,
abbr,
acronym,
address,
big,
cite,
code,
del,
dfn,
em,
img,
ins,
kbd,
q,
s,
samp,
small,
strike,
strong,
sub,
sup,
tt,
var,
b,
u,
i,
center,
dl,
dt,
dd,
ol,
ul,
li,
fieldset,
form,
label,
legend,
table,
caption,
tbody,
tfoot,
thead,
tr,
th,
td,
article,
aside,
canvas,
details,
embed,
figure,
figcaption,
footer,
header,
hgroup,
menu,
nav,
output,
ruby,
section,
summary,
time,
mark,
audio,
video {
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 100%;
  font: inherit;
  vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
menu,
nav,
section {
  display: block;
}
body {
  line-height: 1;
  font-family: 'Ubuntu Mono', monospace;
  background-color: #123456;
  text-align: center;
}
ol,
ul {
  list-style: none;
}
blockquote,
q {
  quotes: none;
}
blockquote:before,
blockquote:after,
q:before,
q:after {
  content: '';
  content: none;
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}

body {
  display: flex;
  flex-direction: column; /* Organise les enfants en colonne */
  align-items: center; /* Centre horizontalement les enfants */
  min-height: 100vh;
}

header button {
  font-size: 20px;
  margin-top: 10px;
}

.clicker-counter {
  margin-top: 10px;
  padding: 10px;
}

.clicker-counter p{
  padding: 10px;
  font-size: 20px;
}

.clicker-counter button {
  font-size: 16px;
}

h1 {
  margin-top: 5px;
  font-size: 25px;
}
h2 {
  font-size: 23px;
  margin-top: 10px;
}
h3 {
  font-size: 21px;
  margin-bottom: 5px;
}

.color-changer {
  margin-top: 20px;
}

.color-changer button {
  font-size: 23px;
}

button {
  cursor: pointer;
  padding: 10px;
  border: 1px solid #123456;
  border-radius: 5px;
}

.dynamic-text {
  font-size: 23px;
  margin-top: 20px;
}

.message-form {
  margin-top: 10px;
}

.message-form input,
.message-form button {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid #123456;
  border-radius: 5px;
}

.message-form button {
  cursor: pointer;
}

.welcome-form {
  display: flex;
  flex-direction: column;
  margin-top: 30px;
  text-align: center;
  padding: 10px;
  border-radius: 5px;
  gap: 5px;
  background-color: #d8d8d8;
}

.welcome-form input,
.welcome-form button {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid #123456;
  border-radius: 5px;
}


.welcome-form select{
  background-color: transparent;
  border: 1px solid #000;
  border-radius: 5px;
  text-align: center;
}

.welcome-form button {
  cursor: pointer;
}

.welcome-form p {
  margin-top: 15px;
}

.simple-quiz {
  margin-top: 30px;
  text-align: center;
}

.simple-quiz div {
  margin: 5px;
  padding: 5px;
  text-align: left;
}

.simple-quiz button {
  margin-top: 10px;
  margin-bottom: 15px;
  padding: 10px;
  border: 1px solid #123456;
  border-radius: 5px;
  cursor: pointer;
}