styles.scss

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600&display=swap');

* {
  padding: 0;
  margin: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body {
  max-height: 100vh;
}
.container {
  display: flex;
}

.item {
  flex: 1;
  position: relative;
  display: flex;
  flex-direction: column;
  height: 90vh;
}

.banner {
  background: #ffffff;
  height: 90vh;
}
button {
  cursor: pointer;
  height: 30px;
  width: 30px;
}
input[type='color'] {
  width: 30px;
  height: 30px;
  border: 0;
}
.inner-container {
  position: absolute;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;

  .content {
    background: rgba($color: #000000, $alpha: 0.5);
    display: flex;
    flex-direction: column;
    width: 100%;
    align-items: center;
    padding: 0.5rem;
    color: white;
    .lock {
      margin: 0.5rem 0;
      border: 0;
      outline: 0;
      &.locked {
        background: rgba($color: white, $alpha: 0.5);
        color: red;
      }
    }
    .hex-value {
      font-size: 1.3rem;
      cursor: pointer;
    }
  }
}

#generate {
  width: 100%;
  height: 10vh;
  background: #53687e;
  border: 0;
  font-size: 1.5rem;
  font-weight: 600;
  color: white;

  &:hover {
    background: #3a4454;
  }
}

@media (max-width: 767px) {
  .container {
    flex-direction: column;
  }
  .banner {
    height: calc(90vh / 5);
  }

  button {
    cursor: pointer;
    height: 20px;
    width: 20px;
  }
  input[type='color'] {
    width: 20px;
    height: 20px;
    border: 0;
  }

  .inner-container {
    .content {
      background: rgba($color: #000000, $alpha: 0);
      .hex-value {
        font-size: 0.7rem;
      }
    }
  }
}