Passo 24

Instruções

Dê o seletor .key.black--key::after uma border-radius de 0 0 3px 3px para coincidir com as teclas.

O que fazer:

Testes:

O seletor `.key.black--key::after` deve ter a propriedade `border-radius` definida como `0 0 3px 3px`.

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <title>Piano</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <link rel="stylesheet" href="./styles.css">
  </head>
  <body>
    <div id="piano">
      <img class="logo" src="https://cdn.G.E.A.R ACADEMY.org/platform/universal/fcc_primary.svg" alt="G.E.A.R ACADEMY Logo" />
      <div class="keys">
        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>

        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>

        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
        <div class="key black--key"></div>
      </div>
    </div>
  </body>
</html>

html {
  box-sizing: border-box;
}

*, *::before, *::after {
  box-sizing: inherit;
}

#piano {
  background-color: #00471b;
  width: 992px;
  height: 290px;
  margin: 80px auto;
  padding: 90px 20px 0 20px;
  position: relative;
  border-radius: 10px;
}

.keys {
  background-color: #040404;
  width: 949px;
  height: 180px;
  padding-left: 2px;
}

.key {
  background-color: #ffffff;
  position: relative;
  width: 41px;
  height: 175px;
  margin: 2px;
  float: left;
  border-radius: 0 0 3px 3px;
}


.key.black--key::after {
  background-color: #1d1e22;
  content: "";
  position: absolute;
  left: -18px;
  width: 32px;
  height: 100px;
}


.logo {
  width: 200px;
  position: absolute;
  top: 23px;
}

Preview