CSS. Порядок стилей

**Позиционирование**
position: relative;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  
**Блочная модель**
  display: flex;  // или block, inline-block, grid, inline-flex и т.д.
  flex-direction: row;
  justify-content: center;
  align-items: center;
  float: left;
  width: 100%;
  max-width: 1200px;
  height: auto;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
  
**Типографика**
  font: normal 16px/1.5 "Arial", sans-serif;
  font-style: normal;
  font-weight: 400;
  font-size: 16px;
  line-height: 1.5;
  font-family: "Arial", sans-serif;
  text-align: left;
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: 1px;
  color: #333333;
  
**Оформление**
  background-color: #ffffff;
  background-image: url('background.png');
  background-size: cover;
  border: 1px solid #cccccc;
  border-radius: 5px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  opacity: 1;
  
**Анимация**
  transition: all 0.3s ease;
  transform: translateY(-10px);
  
**Разное**
  will-change: opacity, transform;
  cursor: pointer;
  overflow: hidden;