元素未与 div 中心对齐

我试图实现以下效果,这是迄今为止我的代码。


<style type ="text/css">

 @font-face {

    font-family: Montserrat;

    src: url("Montserrat_Light.otf") format("opentype");

}

body{

    background-color: #c3c8c0;

}

button {

    font-family: Montserrat;

    font-size: 36px;

    color: #38332b;

    

    border-radius: 60px;

    border: 2.2px solid transparent;

    background: linear-gradient(#d8d8d8, #d0d0d0), linear-gradient(#fefcfc, #a8a4a9 60%);

    background-clip: padding-box, border-box;

    background-origin: padding-box, border-box;


    box-shadow: 0px 1px 0px 1px #fec75a, 0px 20px 20px 2px #b79d89, 0px 0px 20px 10px #d6cbc6; /*d6cbc6 c8c3c0*/


    height: 120px;

    width: 120px;

}

button:focus{

    outline: none;

}

.buttonholder{

    height: 160px;

    width: 160px;

    border-radius: 80px;

    background: #c3c8c0;

    box-shadow: 0px 0px 2px 1px #d6d0cc;

}

<body>


<div class="buttonholder">

    <button>

        21

    </button>

</div>

</body>

然而,正如您所看到的,按钮的主要部分(浅色部分)没有与较大的暗圆圈正确对齐。有谁知道为什么会出现这种情况以及如何解决?感谢您的任何帮助。



catspeake
浏览 58回答 2
2回答

吃鸡游戏

您需要将按钮放置在中心。我已经改变了你的代码。下面的代码按预期工作正常。<style type ="text/css">&nbsp;@font-face {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; src: url("Montserrat_Light.otf") format("opentype");}body{&nbsp; &nbsp; background-color: #c3c8c0;}button {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; font-size: 36px;&nbsp; &nbsp; color: #38332b;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; border-radius: 60px;&nbsp; &nbsp; border: 2.2px solid transparent;&nbsp; &nbsp; background: linear-gradient(#d8d8d8, #d0d0d0), linear-gradient(#fefcfc, #a8a4a9 60%);&nbsp; &nbsp; background-clip: padding-box, border-box;&nbsp; &nbsp; background-origin: padding-box, border-box;&nbsp; &nbsp; box-shadow: 0px 1px 0px 1px #fec75a, 0px 20px 20px 2px #b79d89, 0px 0px 20px 10px #d6cbc6; /*d6cbc6 c8c3c0*/&nbsp; &nbsp; height: 120px;&nbsp; &nbsp; width: 120px;margin:20px;}button:focus{&nbsp; &nbsp; outline: none;}.buttonholder{&nbsp; &nbsp; height: 160px;&nbsp; &nbsp; width: 160px;&nbsp; &nbsp; border-radius: 80px;&nbsp; &nbsp; background: #c3c8c0;&nbsp; &nbsp; box-shadow: 0px 0px 2px 1px #d6d0cc;}<body><div class="buttonholder">&nbsp; &nbsp; <button>&nbsp; &nbsp; &nbsp; &nbsp; 21&nbsp; &nbsp; </button></div></body>

慕仙森

您可以在按钮周围添加足够的边距,以使按钮框的尺寸(宽度 + 2 * 边距)加起来等于 div 的尺寸。不过,这似乎有点脆弱:更改任何大小,您都必须摆弄其他属性来维持关系。IIUC(我也在学习这一点),当前的建议是使用弹性盒。@font-face {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; src: url("Montserrat_Light.otf") format("opentype");}body{&nbsp; &nbsp; background-color: #c3c8c0;}button {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; font-size: 36px;&nbsp; &nbsp; color: #38332b;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; border-radius: 60px;&nbsp; &nbsp; border: 2.2px solid transparent;&nbsp; &nbsp; background: linear-gradient(#d8d8d8, #d0d0d0), linear-gradient(#fefcfc, #a8a4a9 60%);&nbsp; &nbsp; background-clip: padding-box, border-box;&nbsp; &nbsp; background-origin: padding-box, border-box;&nbsp; &nbsp; box-shadow: 0px 1px 0px 1px #fec75a, 0px 20px 20px 2px #b79d89, 0px 0px 20px 10px #d6cbc6; /*d6cbc6 c8c3c0*/&nbsp; &nbsp; height: 120px;&nbsp; &nbsp; width: 120px;}button:focus{&nbsp; &nbsp; outline: none;}.buttonholder{&nbsp; &nbsp; height: 160px;&nbsp; &nbsp; width: 160px;&nbsp; &nbsp; border-radius: 80px;&nbsp; &nbsp; background: #c3c8c0;&nbsp; &nbsp; box-shadow: 0px 0px 2px 1px #d6d0cc;/* added to make the container a flex box and center its content */display: flex;justify-content: center;align-items: center}<div class="buttonholder">&nbsp; &nbsp; <button>&nbsp; &nbsp; &nbsp; &nbsp; 21&nbsp; &nbsp; </button></div>该display:flex属性使 .buttonholder div 像弹性框一样布局。justify-content:center;弹性框的功能包括使用 使内容水平居中以及使用 使内容垂直居中的简单方法align-items:center;。如果您需要支持不支持的旧版浏览器display:flex,另一种方法是使用按钮相对于包含的 div 的绝对定位并结合翻译:@font-face {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; src: url("Montserrat_Light.otf") format("opentype");}body{&nbsp; &nbsp; background-color: #c3c8c0;}button {&nbsp; &nbsp; font-family: Montserrat;&nbsp; &nbsp; font-size: 36px;&nbsp; &nbsp; color: #38332b;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; border-radius: 60px;&nbsp; &nbsp; border: 2.2px solid transparent;&nbsp; &nbsp; background: linear-gradient(#d8d8d8, #d0d0d0), linear-gradient(#fefcfc, #a8a4a9 60%);&nbsp; &nbsp; background-clip: padding-box, border-box;&nbsp; &nbsp; background-origin: padding-box, border-box;&nbsp; &nbsp; box-shadow: 0px 1px 0px 1px #fec75a, 0px 20px 20px 2px #b79d89, 0px 0px 20px 10px #d6cbc6; /*d6cbc6 c8c3c0*/&nbsp; &nbsp; height: 120px;&nbsp; &nbsp; width: 120px;/* added to get centered positioning */margin:0;position:absolute;top:50%;left:50%;transform: translate(-50%, -50%);}button:focus{&nbsp; &nbsp; outline: none;}.buttonholder{&nbsp; &nbsp; height: 160px;&nbsp; &nbsp; width: 160px;&nbsp; &nbsp; border-radius: 80px;&nbsp; &nbsp; background: #c3c8c0;&nbsp; &nbsp; box-shadow: 0px 0px 2px 1px #d6d0cc;/* added to use absolute positioning of content relative to the holder */position:relative;}<div class="buttonholder">&nbsp; &nbsp; <button>&nbsp; &nbsp; &nbsp; &nbsp; 21&nbsp; &nbsp; </button></div>我认为这可能会更加稳健。解释一下:position:absolute为按钮提供相对于最近定位祖先的定位。添加position:relative到 .buttonholder 会使 div 成为定位元素,但如果没有任何附加 CSS,则不会更改其位置。回到按钮:将 top/left 设置为 50% 将按钮的左上角设置为 div 宽度/高度的中间/下方 — 对于 div 的当前大小 (80, 80),但是如果你改变div的大小,它会自动调整。然后transform: translate(-50%, -50%)将按钮向后移动一半。最终结果是按钮在 div 内居中,并且即使更改按钮或 div 的尺寸也保持居中。
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