Der richtige Weg, um den Tastendruckeffekt in CSS zu erzielen

Question

Ich verwende CSS, um ein Klavierlayout zu erstellen. Ich mag diesen „Knopf gedrückt“-Effekt wirklich, aber er verändert die umgebenden Elemente. Wie kann man diese Situation vermeiden?

<main>
    <div id="o-2" class="octave">
        <button id="C2" class="C key"></button>
        <button id="C2-sharp" class="C-sharp key-black"></button>
        <button id="D2" class="D key"></button>
        <button id="D2-sharp" class="D-sharp key-black"></button>
        <button id="E2" class="E key"></button>
    </div>
</main>

main {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.octave {
    display: grid;
    grid-template-rows: 25% 25% 25% 25%;
    grid-template-columns: repeat(14, auto);
}

button {
    border: 1px solid black;
    margin: 1px;
    box-shadow: 5px 5px 5px black;
    cursor: pointer;
}

button:active {
    margin-left: 4px;
    margin-top: 4px;
    box-shadow: 1px 1px 5px black;
}

Die Positionierung der Schaltflächen erfolgt mithilfe von Rastern. Danke!

Answer 1

您可以更改按钮元素类型。下面我分享一下。

main {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.octave {
    display: grid;
    grid-template-rows: 25% 25% 25% 25%;
    grid-template-columns: repeat(14, auto);
}

a {
    border: 1px solid black;
    margin: 1px;
    box-shadow: 5px 5px 5px black;
    cursor: pointer;
    width:14px;
    height:30px;
}

a:active {
    margin-left: 4px;
    margin-top: 4px;
    box-shadow: 1px 1px 5px black;
}

<main>
    <div id="o-2" class="octave">
        <a id="C2" class="C key"></a>
        <a id="C2-sharp" class="C-sharp key-black"></a>
        <a id="D2" class="D key"></a>
        <a id="D2-sharp" class="D-sharp key-black"></a>
        <a id="E2" class="E key"></a>
    </div>
</main>

Answer 2

您可以使用 transform 属性来代替调整 :active 伪类中的 margin。 transform 属性允许您稍微缩放按钮并在按下按钮时将其向下移动，而不会影响周围元素的布局。

...
button {
  border: 1px solid black;
  margin: 1px;
  box-shadow: 5px 5px 5px black;
  cursor: pointer;
  transition: transform 0.2s ease; /* Add a smooth transition */
}

button:active {
  transform: scale(0.95) translateY(3px); /* Scale down and move down */
  box-shadow: 1px 1px 5px black;
}