index.css

* {
  margin: 0;
  font-family: "Fira Sans", sans-serif;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
}

h1 {
  margin: 50px;
  font-size: 3em;
}

main {
  max-width: 1506px;
  display: flex;
  flex-wrap: wrap;
}

div {
  max-width: 400px;
  margin: 50px;
  box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
  transition: 0.3s;
}

div:hover {
  box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
}

h2 {
  width: calc(100% - 15px);
  padding: 15px 0px 15px 15px;
  background-color: skyblue;
}

img {
  max-width: 100%;
  margin-bottom: 15px;
}

p {
  padding: 10px;
}

.menubar {
  box-shadow: none;
  max-width: 1400px;
  align-self: auto;
}

.menubar:hover {
  box-shadow: none;
}

button {
  margin: 0 5px;
  background-color: white;
  border: 1px solid #87ceeb;
  padding: 15px;
  box-shadow: 0 1px 4px 0 rgba(0, 0, 0, 0.2);
  transition: 0.3s;
  cursor: pointer;
}

button:hover {
  box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.2);
}

.alert {
  border-left: 10px solid red;
  width: 100%;
  background-color: tomato;
  color: white;
}