質問編集履歴
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追記
test
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File without changes
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@@ -13,3 +13,101 @@
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![イメージ説明](331e21ff1588f1417e0b60de39c87a2e.png)
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追記
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```html
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<section id="a_wrap">
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<div class="btn_wrap">
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<span class="btna"></span>
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<span class="btnb"></span>
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</div>
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<div class="comment Wrap">
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<textarea id="v_textbox" name="comment" placeholder="メッセージを入力してください" required="required"</textarea>
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<p id="send_button"></p>
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</div>
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</section>
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```
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```css
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html,body{
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height: 100vh;
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}
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section {
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height: 100%;
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overflow: hidden;
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position: relative;
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}
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.btn_wrap span {
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display: inline-block;
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position: relative;
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width: 140px;
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margin: 0 3%;
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}
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.comment {
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top: 50%;
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width: 100%;
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height: 100%;
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position: absolute;
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left: 0;
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}
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.comment #send_button {
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position: absolute;
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left: 0;
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top: 40%;
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height: 100%;
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width: 100%;
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background: pink;
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transition: 1.5s ease;
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}
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```
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※ピンクボタンを押したら、上に伸びて全画面ピンクになるので、#send_buttonをheight100%にしています。
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