Théorème de Pythagore
.pythagore-cours {
font-family: Georgia, 'Times New Roman', serif;
color: #1a1a2e;
max-width: 820px;
margin: 0 auto;
line-height: 1.8;
}
.pythagore-cours h1 {
font-size: 2em;
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border-bottom: 3px solid #e94560;
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margin-bottom: 0.5em;
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.pythagore-cours h2 {
font-size: 1.3em;
color: #0f3460;