在悬停时将伸缩子扩展到全宽度

Question

在下面的例子中，是否有可能将flex子扩展到仅使用css的全宽度悬停，或者我应该使用javascript?注意:在此场景中使用flexx非常重要。如果它不可能用CSS创建它，你能建议一个javascript功能的这个问题?

html {
box-sizing: border-box;
background: #ffc600;
font-family: 'sans-serif';
font-size: 20px;
font-weight: 200;
}
body {
margin: 0;
}
*, *:before, *:after {
box-sizing: inherit;
}
.panels {
min-height: 100vh;
overflow: hidden;
display: flex;
position: relative;

}
.panel {
background: #6B0F9C;
box-shadow: inset 0 0 0 5px rgba(255,255,255,0.1);
color: white;
text-align: center;
align-items: center;
transition:
transform 0.2s,
flex 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
background 0.2s;
font-size: 20px;
background-size: cover;
background-position: center;
flex: 1;
display: flex;
flex-direction: column;
justify-content: center;
}
.panel a{
color:#fff;
font-weight: bold;
font-size: 20px;
text-decoration: none;
text-shadow: 1px 2px rgba(0,0,0,.7);
}
.panel:hover{
flex:2
}
.panel1 { background-image:url(https://source.unsplash.com/gYl-UtwNg_I/1500x1500); }
.panel2 { background-image:url(https://source.unsplash.com/rFKUFzjPYiQ/1500x1500); }
.panel3 { background-image:url(https://images.unsplash.com/photo-1465188162913-8fb5709d6d57?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&w=1500&h=1500&fit=crop&s=967e8a713a4e395260793fc8c802901d); }
.panel4 { background-image:url(https://source.unsplash.com/ITjiVXcwVng/1500x1500); }
.panel5 { background-image:url(https://source.unsplash.com/3MNzGlQM7qs/1500x1500); }

<div class="panels">
<div class="panel panel1"><a href="">link1</a></div>
<div class="panel panel2"><a href="">link2</a></div>
<div class="panel panel3"><a href="">link3</a></div>
<div class="panel panel4"><a href="">link4</a></div>
<div class="panel panel5"><a href="">link5</a></div>
</div>

Answer 1

将min-width:0;overflow:hidden;添加到所有面板中，然后在悬停时使用flex-basis:100%

html {
box-sizing: border-box;
background: #ffc600;
font-family: 'sans-serif';
font-size: 20px;
font-weight: 200;
}
body {
margin: 0;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
.panels {
min-height: 100vh;
overflow: hidden;
display: flex;
position: relative;
}
.panel {
background: #6B0F9C;
box-shadow: inset 0 0 0 5px rgba(255, 255, 255, 0.1);
color: white;
text-align: center;
align-items: center;
transition: transform 0.2s, flex 0.7s cubic-bezier(0.61, -0.19, 0.7, -0.11), background 0.2s;
font-size: 20px;
background-size: cover;
background-position: center;
flex: 1;
min-width:0;
overflow:hidden;
display: flex;
flex-direction: column;
justify-content: center;
}
.panel a {
color: #fff;
font-weight: bold;
font-size: 20px;
text-decoration: none;
text-shadow: 1px 2px rgba(0, 0, 0, .7);
}
.panel:hover {
flex-basis: 100%;
}
.panel1 {
background-image: url(https://source.unsplash.com/gYl-UtwNg_I/1500x1500);
}
.panel2 {
background-image: url(https://source.unsplash.com/rFKUFzjPYiQ/1500x1500);
}
.panel3 {
background-image: url(https://images.unsplash.com/photo-1465188162913-8fb5709d6d57?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&w=1500&h=1500&fit=crop&s=967e8a713a4e395260793fc8c802901d);
}
.panel4 {
background-image: url(https://source.unsplash.com/ITjiVXcwVng/1500x1500);
}
.panel5 {
background-image: url(https://source.unsplash.com/3MNzGlQM7qs/1500x1500);
}

<div class="panels">
<div class="panel panel1"><a href="">link1</a></div>
<div class="panel panel2"><a href="">link2</a></div>
<div class="panel panel3"><a href="">link3</a></div>
<div class="panel panel4"><a href="">link4</a></div>
<div class="panel panel5"><a href="">link5</a></div>
</div>

Answer 2

解决方案:隐藏悬停时的所有子元素，除了鼠标指针下的子元素

可以使用纯css:

.panels:hover .panel:not(:hover) {
display: none;
}

下面是更新后的代码片段:

html {
box-sizing: border-box;
background: #ffc600;
font-family: 'sans-serif';
font-size: 20px;
font-weight: 200;
}
body {
margin: 0;
}
*, *:before, *:after {
box-sizing: inherit;
}
.panels {
min-height: 100vh;
overflow: hidden;
display: flex;
position: relative;

}
.panel {
background: #6B0F9C;
box-shadow: inset 0 0 0 5px rgba(255,255,255,0.1);
color: white;
text-align: center;
align-items: center;
transition:
transform 0.2s,
flex 0.7s cubic-bezier(0.61,-0.19, 0.7,-0.11),
background 0.2s;
font-size: 20px;
background-size: cover;
background-position: center;
flex: 1;
display: flex;
flex-direction: column;
justify-content: center;
}
.panel a{
color:#fff;
font-weight: bold;
font-size: 20px;
text-decoration: none;
text-shadow: 1px 2px rgba(0,0,0,.7);
}
.panel:hover{
flex: 2;
}
.panel1 { background-image:url(https://source.unsplash.com/gYl-UtwNg_I/1500x1500); }
.panel2 { background-image:url(https://source.unsplash.com/rFKUFzjPYiQ/1500x1500); }
.panel3 { background-image:url(https://images.unsplash.com/photo-1465188162913-8fb5709d6d57?ixlib=rb-0.3.5&q=80&fm=jpg&crop=faces&cs=tinysrgb&w=1500&h=1500&fit=crop&s=967e8a713a4e395260793fc8c802901d); }
.panel4 { background-image:url(https://source.unsplash.com/ITjiVXcwVng/1500x1500); }
.panel5 { background-image:url(https://source.unsplash.com/3MNzGlQM7qs/1500x1500); }
.panels:hover .panel:not(:hover) {
display: none;
}

<div class="panels">
<div class="panel panel1"><a href="">link1</a></div>
<div class="panel panel2"><a href="">link2</a></div>
<div class="panel panel3"><a href="">link3</a></div>
<div class="panel panel4"><a href="">link4</a></div>
<div class="panel panel5"><a href="">link5</a></div>
</div>

Answer 3

你可以做

.panel:hover{ flex-basis: 100%; }

它将把其余部分缩小到最小，并扩大悬停的部分。检查是否有帮助。