style.css

*, ::before, ::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Roboto, Helvetica, sans-serif;
  background: linear-gradient(to right, #1e48aa, #81a9fc);
  padding: 0 10px;
}

main {
  max-width: 375px;
  min-height: 380px;
  margin: 100px auto 0;
  border-radius: 10px;
  padding: 30px 10px;
  color: #212121;
  background-color: #f1f1f1;
  box-shadow: 0 5px 5px rgba(0,0,0,0.3);
  text-align: center;
  position: relative;
}

.loader-container {
  background-color: #f1f1f1;
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  border-radius: 10px;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  visibility: hidden;
  opacity: 0;
  transition: visibility 0.4s ease-out, opacity 0.4s ease-out;
}

.loader-container.active {
  visibility: visible;
  opacity: 1;
}

.city-name {
  font-family: Lato, sans-serif;
  font-size: 50px;
  color: #333;
}

.country-name {
  font-size: 24px;
  margin-bottom: 45px;
  color: #606060;
}

.temperature {
  font-family: Lato, sans-serif;
  font-size: 70px;
  font-weight: 700;
  color: #212121;
}

.info-icon-container {
  width: 100px;
  height: 100px;
  margin: 0 auto;
  position: relative;
}

.info-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
}