This is a sample CSS for my ReactJS Training Program - Hello World

React-HelloWorld-basic-CSS

html {
  height: 100%;
}

body {
  background: #f2f2f2;
  font-family: Roboto;
  display: flex;
  justify-content: center;
  align-items: center;
}

h2 {
  font-weight: 500;
  margin: 0px;
}

h4 {
  font-weight: 400;
  font-size: 18px;
  margin: 0px;
  margin-bottom: 8px;
}

.text-center {
  text-align: center;
}

form {
  width: 100%;
}

.search-box {
  margin: 16px;
  margin-bottom: 2px;
}

.movie-box {
  display: inline-block;
  margin: 24px;
  margin-top: 2px;
  border: 1px solid #ddd;
  padding: 6px;
  text-align: center;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
}

button {
  background-color: #f44336;
  color: white;
  border: none;
  border-radius: 10em;
  margin: 6px;
  transition: box-shadow 0.2s ease;
  box-shadow: 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
  &:hover {
    box-shadow: 0 0 8px rgba(0, 0, 0, 0.18), 0 8px 16px rgba(0, 0, 0, 0.36);
  }
  &:last-child {
    background-color: #4caf50;
  }
}

img {
  box-shadow: 0 16px 38px -12px rgba(0, 0, 0, 0.56), 0 4px 25px 0px rgba(0, 0, 0, 0.12), 0 8px 10px -5px rgba(0, 0, 0, 0.2);
  margin-right: 12px;
  margin-left: 12px;
}