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css - Flexbox 父元素折叠

转载 作者:行者123 更新时间:2023-12-04 17:43:45 25 4
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我试图让我的 Logo 和导航菜单底部对齐,并将它们分别左右分开(好像 Logo 向左浮动,导航项向右浮动)但我无法控制垂直方向它们之间的对齐方式,因为子元素在下方不断消失,要看到它,我必须将溢出设置为在其父元素上可见。

我一直在努力处理试图强制高度的父容器,但它们一直在折叠,我找不到让它们包裹子元素的解决方案。

这是在桌面 View 中发生的:请参阅样式末尾的@media(最小宽度:1460px)。

我能得到一些帮助吗?提前致谢。

/*------------------------- reset */
html {
box-sizing: border-box;
font-size: 16px;
}

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

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ol,
ul {
margin: 0;
padding: 0;
}

ol,
ul {
list-style: none;
}

img {
width: 100%;
height: auto;
}


/*-------------------- general styles */

:root {
--light-bg: rgba(0, 0, 0, .1);
--main-bg-color: rgba(220, 220, 220, 0.8);
--main-font: 'Lato', sans-serif;
--title-bg: #555;
--title-color: #fff;
--title-font: "Poppins", sans-serif;
--secondary-title-color: #444;
--main-text-color: #444;
--shadows: 0px 1px 15px rgba(0, 0, 0, .6);
--hr: 1px solid rgba(0, 0, 0, .2);
}

body {
background-color: var(--main-bg-color);
color: #A1A1A1;
font-family: var(--title-font);
font-weight: 100;
font-size: 0.9rem;
letter-spacing: 1px;
line-height: 1.3;
}

.container {
position: relative;
width: 100%;
margin: 0 auto;
}

a {
outline: none;
text-decoration: none;
padding: 2px 1px 0;
}

a:link {
color: #778899;
}

a:visited {
color: #778899;
}

a:focus {
background: rgba(0, 0, 0, .3);
}

a:hover {
color: #9aa6b1;
}

a:active {
color: #fff;
}

h1,
h2,
h3,
h4,
h5,
h6 {
font-family: var(--title-font);
color: var(--secondary-title-color);
font-weight: 300;
letter-spacing: 2px;
text-transform: uppercase;
margin-bottom: 16px;
margin: 0 auto;
padding: 10px;
text-align: center;
}

h1 {
color: var(--title-color);
background-color: var(--title-bg);
font-weight: 900;
font-size: 1.5rem;
}

h2 {
font-size: 1.5rem;
}


h3 {
font-size: 1rem;
text-align: left;
padding: 20px 0;
}

p::first-letter,
li::first-letter {
text-transform: uppercase;
}

/*---------------------------- HEADER */
header {
display: block;
height: 120px;
background-color: #fff;
box-shadow: var(--shadows);
width: 100%;
position: relative;
z-index: 999999;
}

.flex-container {
overflow: hidden;
}

.logo {
}

.logo img {
width: 250px;
height: 100px;
margin: 10px;
}


/* menu */
nav {
width: 100%;
position: absolute;
z-index: 1;
top: 10px;
right: 10px;
}

nav ul {
margin: 0 -10px 0 0;
padding: 0;
list-style: none;
overflow: hidden;
background-color: rgba(255, 255, 255, 1);
top: 57px;
position: relative;
clear: both;
max-height: 0;
transition: max-height .2s ease-out;
color: white;
font-size: 1.3rem;
}

nav li a {
display: block;
padding: 20px 38px;
border-bottom: var(--hr);
text-decoration: none;
color: darkseagreen;
font-size: 1.3rem;
}

nav li a:hover,
nav .menu-btn:hover {
background-color: #f4f4f4;
}

nav li a:hover {
color: seagreen;
font-size: 1.3rem;
}

/* menu icon */


.menu-icon {
cursor: pointer;
display: inline-block;
float: right;
padding: 25px 17px;
position: relative;
user-select: none;
border: 1px solid #999;
background-color: #b2bdcc;
border-radius: 50%;
}

.menu-icon .navicon {
background: #fff;
display: block;
height: 2px;
position: relative;
transition: background .2s ease-out;
width: 18px;
}

.menu-icon .navicon:before,
.menu-icon .navicon:after {
background: #fff;
content: '';
display: block;
height: 100%;
position: absolute;
transition: all .2s ease-out;
width: 100%;
}

.menu-icon .navicon:before {
top: 5px;
}

.menu-icon .navicon:after {
top: -5px;
}

/* menu btn */

.menu-btn {
display: none;
}

.menu-btn:checked ~ ul {
max-height: 476px;
}

.menu-btn:checked ~ .menu-icon .navicon {
background: transparent;
}

.menu-btn:checked ~ .menu-icon .navicon:before {
transform: rotate(-45deg);
}

.menu-btn:checked ~ .menu-icon .navicon:after {
transform: rotate(45deg);
}

.menu-btn:checked ~ .menu-icon:not(.steps) .navicon:before,
.menu-btn:checked ~ .menu-icon:not(.steps) .navicon:after {
top: 0;
}

@media (min-width: 1460px) {

.container {
width: 80%;
}

.flex-container,
nav ul {
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: space-between;
}
.logo img{
margin: 10px 0;
}
.logo {
height: 120px;
}

/* menu */
nav {
display: flex;
position: static;
width: 70%;
}

nav ul {

overflow: visible;
}

nav li{
height: max-content;
}

nav li a {
padding: 10px 20px;
border-bottom: none;
border-right: 1px solid #f4f4f4;
margin: 0;
}

.menu-icon {
display: none;
}
}
<!DOCTYPE html>
<html lang="es">

<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title></title>
<meta name="title" content="">
<meta name="description" content="">
<meta name="keywords" content="">
<link href="css/responsive-menu.css" rel="stylesheet" type="text/css">
</head>

<body>

<header>
<div class="container">
<div class="flex-container">
<div class="logo">
<img src="https://dummyimage.com/250x100/b2bdcc/fff.png" />
</div>
<nav>
<input class="menu-btn" type="checkbox" id="menu-btn" />
<label class="menu-icon" for="menu-btn"><span class="navicon"></span></label>
<ul>
<li><a href="#">menu 1</a></li>
<li><a href="#">menu 2</a></li>
<li><a href="#">menu 3</a></li>
<li><a href="#">menu 4</a></li>
<li><a href="#">menu 5</a></li>
<li><a href="#">menu 6</a></li>
<li><a href="#">menu 7</a></li>
</ul>
</nav>
</div>
</div>
</header>
<main>

</main>
<footer>

</footer>
</body>

</html>

最佳答案

要在 min-width: 1460px 中分隔和底部对齐 Logo 和菜单,我只在您的媒体查询中进行了这些修改(它们都已注释):

@media (min-width: 1460px) {
.container {
width: 80%;
}

.flex-container,
nav ul {
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: space-between;
max-height: none; /*remove max-height:0 */
top: 0; /* remove top:57px; */
align-items: flex-end; /* This rule align your menu on bottom */
}


.logo img{
margin: 10px 0;
}
.logo {
height: 120px;
}

/* menu */
nav {
display: flex;
position: static;
/*width: 70%;*/
width:auto;
margin-left:auto; /* --> this rule put your nav on right */
}

/*nav ul {
overflow: visible; --> Removing max-height:0; this rule is not necessary
}*/

nav li{
height: max-content;
}

nav li a {
padding: 10px 20px;
border-bottom: none;
border-right: 1px solid #f4f4f4;
margin: 0;
}

.menu-icon {
display: none;
}
}

这是结果。希望能帮助到你! :)

/*------------------------- reset */
html {
box-sizing: border-box;
font-size: 16px;
}

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

body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
ol,
ul {
margin: 0;
padding: 0;
}

ol,
ul {
list-style: none;
}

img {
width: 100%;
height: auto;
}


/*-------------------- general styles */

:root {
--light-bg: rgba(0, 0, 0, .1);
--main-bg-color: rgba(220, 220, 220, 0.8);
--main-font: 'Lato', sans-serif;
--title-bg: #555;
--title-color: #fff;
--title-font: "Poppins", sans-serif;
--secondary-title-color: #444;
--main-text-color: #444;
--shadows: 0px 1px 15px rgba(0, 0, 0, .6);
--hr: 1px solid rgba(0, 0, 0, .2);
}

body {
background-color: var(--main-bg-color);
color: #A1A1A1;
font-family: var(--title-font);
font-weight: 100;
font-size: 0.9rem;
letter-spacing: 1px;
line-height: 1.3;
}

.container {
position: relative;
width: 100%;
margin: 0 auto;
}

a {
outline: none;
text-decoration: none;
padding: 2px 1px 0;
}

a:link {
color: #778899;
}

a:visited {
color: #778899;
}

a:focus {
background: rgba(0, 0, 0, .3);
}

a:hover {
color: #9aa6b1;
}

a:active {
color: #fff;
}

h1,
h2,
h3,
h4,
h5,
h6 {
font-family: var(--title-font);
color: var(--secondary-title-color);
font-weight: 300;
letter-spacing: 2px;
text-transform: uppercase;
margin-bottom: 16px;
margin: 0 auto;
padding: 10px;
text-align: center;
}

h1 {
color: var(--title-color);
background-color: var(--title-bg);
font-weight: 900;
font-size: 1.5rem;
}

h2 {
font-size: 1.5rem;
}


h3 {
font-size: 1rem;
text-align: left;
padding: 20px 0;
}

p::first-letter,
li::first-letter {
text-transform: uppercase;
}

/*---------------------------- HEADER */
header {
display: block;
height: 120px;
background-color: #fff;
box-shadow: var(--shadows);
width: 100%;
position: relative;
z-index: 999999;
}

.flex-container {
overflow: hidden;
}

.logo {
}

.logo img {
width: 250px;
height: 100px;
margin: 10px;
}


/* menu */
nav {
width: 100%;
position: absolute;
z-index: 1;
top: 10px;
right: 10px;
}

nav ul {
margin: 0 -10px 0 0;
padding: 0;
list-style: none;
overflow: hidden;
background-color: rgba(255, 255, 255, 1);
top: 57px;
position: relative;
clear: both;
max-height: 0;
transition: max-height .2s ease-out;
color: white;
font-size: 1.3rem;
}

nav li a {
display: block;
padding: 20px 38px;
border-bottom: var(--hr);
text-decoration: none;
color: darkseagreen;
font-size: 1.3rem;
}

nav li a:hover,
nav .menu-btn:hover {
background-color: #f4f4f4;
}

nav li a:hover {
color: seagreen;
font-size: 1.3rem;
}

/* menu icon */


.menu-icon {
cursor: pointer;
display: inline-block;
float: right;
padding: 25px 17px;
position: relative;
user-select: none;
border: 1px solid #999;
background-color: #b2bdcc;
border-radius: 50%;
}

.menu-icon .navicon {
background: #fff;
display: block;
height: 2px;
position: relative;
transition: background .2s ease-out;
width: 18px;
}

.menu-icon .navicon:before,
.menu-icon .navicon:after {
background: #fff;
content: '';
display: block;
height: 100%;
position: absolute;
transition: all .2s ease-out;
width: 100%;
}

.menu-icon .navicon:before {
top: 5px;
}

.menu-icon .navicon:after {
top: -5px;
}

/* menu btn */

.menu-btn {
display: none;
}

.menu-btn:checked ~ ul {
max-height: 476px;
}

.menu-btn:checked ~ .menu-icon .navicon {
background: transparent;
}

.menu-btn:checked ~ .menu-icon .navicon:before {
transform: rotate(-45deg);
}

.menu-btn:checked ~ .menu-icon .navicon:after {
transform: rotate(45deg);
}

.menu-btn:checked ~ .menu-icon:not(.steps) .navicon:before,
.menu-btn:checked ~ .menu-icon:not(.steps) .navicon:after {
top: 0;
}

@media (min-width: 1460px) {

.container {
width: 80%;
}

.flex-container,
nav ul {
display: flex;
flex-direction: row;
flex-wrap: nowrap;
justify-content: space-between;
max-height: none; /*remove max-height:0 */
top: 0; /* remove top:57px; */
align-items: flex-end; /* This rule align your menu on bottom */
}


.logo img{
margin: 10px 0;
}
.logo {
height: 120px;
}

/* menu */
nav {
display: flex;
position: static;
/*width: 70%;*/
width:auto;
margin-left:auto; /* --> this rule put your nav on right */
}

/*nav ul {
overflow: visible; --> Removing max-height:0; this rule is not necessary
}*/

nav li{
height: max-content;
}

nav li a {
padding: 10px 20px;
border-bottom: none;
border-right: 1px solid #f4f4f4;
margin: 0;
}

.menu-icon {
display: none;
}
}
<header>
<div class="container">
<div class="flex-container">
<div class="logo">
<img src="https://dummyimage.com/250x100/b2bdcc/fff.png" />
</div>
<nav>
<input class="menu-btn" type="checkbox" id="menu-btn" />
<label class="menu-icon" for="menu-btn"><span class="navicon"></span></label>
<ul>
<li><a href="#">menu 1</a></li>
<li><a href="#">menu 2</a></li>
<li><a href="#">menu 3</a></li>
<li><a href="#">menu 4</a></li>
<li><a href="#">menu 5</a></li>
<li><a href="#">menu 6</a></li>
<li><a href="#">menu 7</a></li>
</ul>
</nav>
</div>
</div>
</header>
<main>

</main>
<footer>

</footer>

关于css - Flexbox 父元素折叠,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/53204542/

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