1 推荐信息
1.1 思路
看了这个gif后，可以清楚的看到产生了三个动画效果：图片"拉近"，"了解更多"从下往上显示出来，阴影。
我看了华为官网的源代码，发现图片本身就是有一个mask的，这样能让图片看起来暗一些，也就意味着，当鼠标进入的时候，只需要让mask的背景颜色更深一些，就实现了阴影的效果。至于图片"拉近"，我早就写过了，无非是把图片放大，然后超出盒子的不显示，这个也容易。但了解更多显现，难度就大了一些。我想了很久，最后只有通过位置，来把"了解更多"显示出来，想过用visibility: visible;但效果不太好，也想过用Vue的过渡效果，但是好像又不能同时产生三个效果。所以笨人先用笨法，先能实现再说。
1.2 代码
<div class="div_container">
<div class="div_title">
<h2 class="title_h2">推荐信息</h2>
</div>
<div class="container_imgs">
<div class="div_row1">
<div class="row1_col1">
<a href="" class="col1_a1" @mouseenter="showDiv1(1)" @mouseleave="hideDiv1(1)">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/matebook-x-pro2.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
<div class="row1_col2" @mouseenter="showDiv1(2)" @mouseleave="hideDiv1(2)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/2.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
</div>
<div class="div_row1">
<div class="row1_col2 " @mouseenter="showDiv1(3)" @mouseleave="hideDiv1(3)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/3.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
<div class="row1_col3" @mouseenter="showDiv1(4)" @mouseleave="hideDiv1(4)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/4.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
</div>
<div class="div_row3">
<div class="row1_col2 " @mouseenter="showDiv1(5)" @mouseleave="hideDiv1(5)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/5.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
<div class="row1_col2 col2_displacement" @mouseenter="showDiv1(6)" @mouseleave="hideDiv1(6)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/6.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
<div class="row1_col2 col2_displacement" @mouseenter="showDiv1(7)" @mouseleave="hideDiv1(7)">
<a href="" class="col1_a1">
<div class="a_div1">
<div class="mask"></div>
<img src="@/assets/7.jpg" alt="" class="a1_img1">
</div>
<div class="a_div2">
<div class="div2_title">
产品
</div>
<div class="div2_info">
HUAWEI MateBook X Pro
</div>
<div class="div2_info2">
入目惊鸿
</div>
<div class="div2_hidden">
了解更多
</div>
</div>
</a>
</div>
</div>
</div>
</div>
这里需要提一下，由于需要操作的是多个div，我用了根据类名操作Dom的方式，所以需要传一下是第几个Dom
methods: {
showDiv1(value) {
var d1 = document.getElementsByClassName('a_div2')[value - 1];
// alert("悬浮上来了")
d1.style.cssText = 'animation-name:example; animation-duration:0.5s;animation-fill-mode: forwards;z-index:3;'
var d3 = document.getElementsByClassName('a1_img1')[value - 1];
d3.style.cssText = 'animation-name:showBigImg2; animation-duration:0.5s;animation-fill-mode: forwards; '
var d2 = document.getElementsByClassName('mask')[value - 1];
d2.style.cssText = ' z-index:2; background: linear-gradient(rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.4) 70%);'
},
hideDiv1(value) {
var d1 = document.getElementsByClassName('a_div2')[value - 1];
d1.style.cssText = ' animation-name:backwards; animation-duration:0.5s;animation-fill-mode: forwards;z-index:3;';
var d3 = document.getElementsByClassName('a1_img1')[value - 1];
d3.style.cssText = 'animation-name:cancelBigImg2; animation-duration:0.5s;animation-fill-mode: forwards; '
var d2 = document.getElementsByClassName('mask')[value - 1];
d2.style.cssText = 'background: linear-gradient(rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.3) 70%);z-index:2;'
// d1.style.cssText = ' animation-name:backwards; animation-duration:0.5s;animation-fill-mode: forwards;';
}
}
要记得设置一下mask的z-index级别（比图片大即可），不然在图片放大的过程中，mask会被遮挡住，这样就实现不了阴影的效果，而且很突兀。
.div_container {
width: 85.652%;
/* border: 1px solid; */
margin: 0 auto;
text-align: center;
}
.div_title {
width: 100%;
height: 100%;
margin-bottom: 5%;
}
.title_h2 {
width: 10%;
height: 90%;
padding-bottom: 8px;
font-size: 30px;
margin: 0 auto;
position: relative;
}
.title_h2::after {
position: absolute;
content: '';
height: 2px;
width: 47%;
top: 100%;
left: 27%;
background-color: #c7000b;
}
.container_imgs {
height: auto;
width: 100%;
}
.div_row1 {
height: auto;
width: 100%;
display: flex;
margin-bottom: 30px !important;
overflow: hidden;
}
.div_row3 {
height: auto;
width: 100%;
display: flex;
margin-bottom: 30px !important;
}
.row1_col1 {
width: 836.98px;
height: auto;
position: relative;
margin-right: 30px;
z-index: 3;
}
.row1_col3 {
width: 836.98px;
height: auto;
position: relative;
margin-left: 30px;
z-index: 3;
}
.col1_a1 {
width: 100%;
height: auto;
}
.a1_img1 {
width: 100%;
height: 100%;
}
.a_div1 {
width: 100%;
height: 100%;
overflow: hidden;
}
.mask {
position: absolute;
top: 30%;
width: 100%;
height: 70%;
opacity: 1;
background: linear-gradient(rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.3) 70%);
}
.row1_col2 {
width: 403.24px;
height: auto;
position: relative;
overflow: hidden;
z-index: 3;
/* border: 2px solid sienna; */
}
.col2_displacement {
margin-left: 30px;
}
/* 从-30px到10px */
.a_div2 {
width: 90%;
height: auto;
padding: 0% 5%;
bottom: -30px;
position: absolute;
display: inline-block;
left: 0px;
/* border: 1px solid purple; */
text-align: left;
}
.div2_title {
font-size: 1em;
line-height: 1.0em;
margin-bottom: 10px;
color: white;
}
.div2_info {
font-size: 1.3em;
line-height: 1.4em;
font-weight: 600;
margin-bottom: 10px;
color: white;
}
.div2_info2 {
font-size: 1em;
line-height: 1.0em;
margin-bottom: 20px;
color: rgb(198, 199, 199);
}
.div2_hidden {
color: white;
height: 20px;
line-height: 20px;
visibility: visible;
margin-bottom: 10px;
}
1.3 知识补充
在写这个效果的时候，我遇到了一个很大的问题，就是鼠标一旦离开这个框（如下）的位置，动画效果就会被取消。我尝试了各种方法都无济于事。起初我以为是子组件遮挡住了父组件导致，所以一度往如何让子组件彻底变成父组件的一部分上思考。但后来搜索Vue中的鼠标事件的时候，得到了解决。
原因是因为最开始我用了mouseout鼠标事件，而mouseout事件一旦离开父元素或者子元素都会触发，所以鼠标离开子元素的时候，也会触发父元素上的mouseout鼠标事件，但是mouseleave则不同，只有离开被选元素的时候，才会触发效果，这样遇到的问题就被完美解决了。
1.4 效果图
2 宣传海报
2.1 思路
这个实现起来很容易，"了解更多"按钮和父组件分别使用position:absolute , position:relative，然后"了解更多"按钮相对于父组件定位，利用top和left(或者bottom、right)定位，将其放置在合适的位置。
至于"了解更多"的悬浮效果，则通过:hover即可实现
2.2 代码
<div class="div_bill">
<img src="@/assets/sanwenyu.jpg" class="bill_img">
<button class="img_btn">了解更多</button>
</div>
.div_bill {
width: 100%;
margin-top: 7%;
height: auto;
position: relative;
}
.bill_img {
width: 100%;
height: auto;
}
.img_btn {
z-index: 100;
width: 170px;
height: 42px;
position: absolute;
border: 1px solid #ffffff;
left: 50.6%;
top: 65%;
color: #ffffff;
cursor: pointer;
/* opacity: 1; */
background-color: rgba(11, 11, 11, 0);
}
.img_btn:hover {
background-color: rgb(199, 0, 11);
border: 0px;
color: #fff;
}
2.3 效果图
3 新闻与活动
3.1 思路
首先是分成三个组件,宽度为30%,中间两个间距分别为5%。
第一第二两个组件的形式一样，都是分成三大部分：展会活动、图片、内容信息。
其中展会活动很显然用到了相对父组件定位，图片和内容使用普通定位即可
另外，当鼠标悬浮上去的时候，图片会被拉近，而内容信息的颜色会变深一些。
当然这个也不是很难，大多数都是用过的知识。
对于第三个组件，相对复杂一些。所谓相对复杂，也不过是因为一个hover实现不了这个效果。因为如果用悬浮的话，要求两个字体的color都需要继承父组件，但是这样的话，就不能保证两个字体的颜色不同，所以需要用到一个鼠标事件，对两者的Dom进行操作实现。
3.2 代码
<div class="div_news">
<div class="news_title">
<h2>新闻与活动</h2>
</div>
<div class="news_info">
<div class="info1" @mouseenter="showDiv2(1)" @mouseleave="hideDiv2(1)">
<div class="info_title">展会活动</div>
<div class="info_main">
<img src="@/assets/info1.jpg" alt="" class="main_img">
<div class="info_words">
<div class="words_container">
<div class="container_first">
<span>华为全联接大会2022</span>
</div>
<div class="container_second">
<span>
<svg t="1666685534558" class="icon" viewBox="0 0 1024 1024" version="1.1"
xmlns="http://www.w3.org/2000/svg" p-id="3562" width="16" height="16">
<path
d="M512 960.13L251.06 699.11c-71.15-70.33-110.32-164.02-110.32-263.99 0-204.71 166.55-371.25 371.25-371.25s371.25 166.54 371.25 371.25c0 100.04-39.22 193.8-110.46 264.13l-1.19 1.26L512 960.13z m0-832.29c-169.44 0-307.28 137.85-307.28 307.28 0 83.11 32.72 160.99 92.12 219.29l1.84 1.96L512 869.66l215.16-215.25c59.4-58.29 92.12-136.17 92.12-219.29 0-169.43-137.84-307.28-307.28-307.28z"
p-id="3563"></path>
<path
d="M512 590.36c-91.72 0-166.34-74.63-166.34-166.35S420.28 257.66 512 257.66c91.73 0 166.36 74.63 166.36 166.35S603.73 590.36 512 590.36z m0-268.73c-56.45 0-102.37 45.93-102.37 102.38S455.55 526.39 512 526.39s102.38-45.93 102.38-102.38S568.45 321.63 512 321.63z"
p-id="3564"></path>
</svg> 线上直播 & 深圳
<svg t="1666685766326" class="icon" viewBox="0 0 1024 1024" version="1.1"
xmlns="http://www.w3.org/2000/svg" p-id="4521" width="16" height="16" style="margin-left:5%;" >
<path
d="M840.691358 63.209877h-50.567901V25.283951a25.283951 25.283951 0 0 0-50.567901 0v37.925926H284.444444V25.283951a25.283951 25.283951 0 0 0-50.567901 0v37.925926H183.308642a176.987654 176.987654 0 0 0-176.987654 176.987654v606.814815a176.987654 176.987654 0 0 0 176.987654 176.987654h657.382716a176.987654 176.987654 0 0 0 176.987654-176.987654v-606.814815a176.987654 176.987654 0 0 0-176.987654-176.987654z m126.419753 783.802469a126.419753 126.419753 0 0 1-126.419753 126.419753H183.308642a126.419753 126.419753 0 0 1-126.419753-126.419753v-455.111111h910.222222z m0-505.679013H56.888889v-101.135802a126.419753 126.419753 0 0 1 126.419753-126.419753h50.567901V176.987654a25.283951 25.283951 0 0 0 50.567901 0V113.777778h455.111112V176.987654a25.283951 25.283951 0 0 0 50.567901 0V113.777778h50.567901a126.419753 126.419753 0 0 1 126.419753 126.419753z"
p-id="4522"></path>
<path
d="M257.643457 613.135802h510.482963a23.766914 23.766914 0 0 0 0-47.280987H257.643457a23.766914 23.766914 0 0 0 0 47.533827zM257.643457 815.407407h510.482963a23.766914 23.766914 0 1 0 0-47.280987H257.643457a23.766914 23.766914 0 0 0 0 47.533827z"
p-id="4523"></path>
</svg> 2022年11月7日 - 9日
</span>
</div>
<div class="container_third">
<span>
华为全联接大会2022之旅中国站将在深圳正式开启，本届大会的主题为“释放数字生产力”。
</span>
</div>
</div>
</div>
</div>
</div>
<div class="info1" @mouseenter="showDiv2(2)" @mouseleave="hideDiv2(2)">
<div class="info_title">展会活动</div>
<div class="info_main">
<img src="@/assets/mbbf2022-cn2.jpg" alt="" class="main_img">
<div class="info_words">
<div class="words_container">
<div class="container_first">
<span>2020全球移动宽带论坛</span>
</div>
<div class="container_second">
<span>
<svg t="1666685534558" class="icon" viewBox="0 0 1024 1024" version="1.1"
xmlns="http://www.w3.org/2000/svg" p-id="3562" width="16" height="16">
<path
d="M512 960.13L251.06 699.11c-71.15-70.33-110.32-164.02-110.32-263.99 0-204.71 166.55-371.25 371.25-371.25s371.25 166.54 371.25 371.25c0 100.04-39.22 193.8-110.46 264.13l-1.19 1.26L512 960.13z m0-832.29c-169.44 0-307.28 137.85-307.28 307.28 0 83.11 32.72 160.99 92.12 219.29l1.84 1.96L512 869.66l215.16-215.25c59.4-58.29 92.12-136.17 92.12-219.29 0-169.43-137.84-307.28-307.28-307.28z"
p-id="3563"></path>
<path
d="M512 590.36c-91.72 0-166.34-74.63-166.34-166.35S420.28 257.66 512 257.66c91.73 0 166.36 74.63 166.36 166.35S603.73 590.36 512 590.36z m0-268.73c-56.45 0-102.37 45.93-102.37 102.38S455.55 526.39 512 526.39s102.38-45.93 102.38-102.38S568.45 321.63 512 321.63z"
p-id="3564"></path>
</svg> 泰国，曼谷
<svg t="1666685766326" class="icon" viewBox="0 0 1024 1024" version="1.1"
xmlns="http://www.w3.org/2000/svg" p-id="4521" width="16" height="16" style="margin-left:5%;">
<path
d="M840.691358 63.209877h-50.567901V25.283951a25.283951 25.283951 0 0 0-50.567901 0v37.925926H284.444444V25.283951a25.283951 25.283951 0 0 0-50.567901 0v37.925926H183.308642a176.987654 176.987654 0 0 0-176.987654 176.987654v606.814815a176.987654 176.987654 0 0 0 176.987654 176.987654h657.382716a176.987654 176.987654 0 0 0 176.987654-176.987654v-606.814815a176.987654 176.987654 0 0 0-176.987654-176.987654z m126.419753 783.802469a126.419753 126.419753 0 0 1-126.419753 126.419753H183.308642a126.419753 126.419753 0 0 1-126.419753-126.419753v-455.111111h910.222222z m0-505.679013H56.888889v-101.135802a126.419753 126.419753 0 0 1 126.419753-126.419753h50.567901V176.987654a25.283951 25.283951 0 0 0 50.567901 0V113.777778h455.111112V176.987654a25.283951 25.283951 0 0 0 50.567901 0V113.777778h50.567901a126.419753 126.419753 0 0 1 126.419753 126.419753z"
p-id="4522"></path>
<path
d="M257.643457 613.135802h510.482963a23.766914 23.766914 0 0 0 0-47.280987H257.643457a23.766914 23.766914 0 0 0 0 47.533827zM257.643457 815.407407h510.482963a23.766914 23.766914 0 1 0 0-47.280987H257.643457a23.766914 23.766914 0 0 0 0 47.533827z"
p-id="4523"></path>
</svg> 2022年10月25日 - 26日
</span>
</div>
<div class="container_third">
<span>
2022全球移动宽带论坛将携手产业合作伙伴GSMA和GTI于10月25-26日在泰国曼谷举办，本届大会主题为“5G引领飞跃 | 5G Leads the Stride”。
</span>
</div>
</div>
</div>
</div>
</div>
<div class="info3">
<div class="info_title f2">新闻</div>
<div class="info_main">
<div class="info_info1 info1_top" @mouseenter="changeColor(1)" @mouseleave="cancelColor(1)">
<h4 class="info_word">
5G引领飞跃
</h4>
<div class="info_time">
2022年10月24日
</div>
</div>
<div class="info_info1" @mouseenter="changeColor(2)" @mouseleave="cancelColor(2)">
<h4 class="info_word">
中国联通和华为共同荣获5G World峰会“5G专网产业领导力奖”
</h4>
<div class="info_time">
2022年10月24日
</div>
</div>
<div class="info_info1" @mouseenter="changeColor(3)" @mouseleave="cancelColor(3)">
<h4 class="info_word">
华为发布麦克斯韦平台和X2天线，助力5G高效部署
</h4>
<div class="info_time">
2022年10月24日
</div>
</div>
<div class="info_info1" @mouseenter="changeColor(4)" @mouseleave="cancelColor(4)">
<h4 class="info_word">
50G PON引领创新，华为荣获2022世界宽带论坛“卓越FTTH解决方案”大奖
</h4>
<div class="info_time">
2022年10月24日
</div>
</div>
<div class="info_info1" @mouseenter="changeColor(5)" @mouseleave="cancelColor(5)">
<h4 class="info_word">
华为主存储连续7年入选Gartner领导者象限
</h4>
<div class="info_time">
2022年10月24日
</div>
</div>
</div>
</div>
</div>
</div>
methods:{
showDiv2(value) {
var d1 = document.getElementsByClassName('info1')[value - 1];
d1.style.cssText = 'background-color: rgba(242,242,242); ';
var d3 = document.getElementsByClassName('main_img')[value - 1];
d3.style.cssText = 'animation-name:showBigImg; animation-duration:0.5s;animation-fill-mode: forwards; '
},
hideDiv2(value) {
var d1 = document.getElementsByClassName('info1')[value - 1];
d1.style.cssText = ' background-color: rgba(248,248,248); ';
var d3 = document.getElementsByClassName('main_img')[value - 1];
d3.style.cssText = 'animation-name:cancelBigImg; animation-duration:0.5s;animation-fill-mode: forwards; '
},
changeColor(value) {
var d1 = document.getElementsByClassName('info_word')[value - 1];
d1.style.cssText = ' color: rgb(199, 0, 11);';
var d3 = document.getElementsByClassName('info_time')[value - 1];
d3.style.cssText = 'color: rgb(199, 0, 11);'
},
cancelColor(value) {
var d1 = document.getElementsByClassName('info_word')[value - 1];
d1.style.cssText = ' color:#111111; ';
var d3 = document.getElementsByClassName('info_time')[value - 1];
d3.style.cssText = 'color: #333;'
}
}
.div_news {
width: 85.652%;
margin: 0 auto;
height: auto;
margin-top: 5%;
}
.news_title {
width: 100%;
height: auto;
margin-bottom: 5%;
}
.news_title h2 {
padding: 0 0;
position: relative;
width: 10%;
margin: 0 auto;
line-height: 40px;
}
.news_title h2::after {
position: absolute;
content: '';
height: 2px;
width: 47%;
top: 100%;
left: 25%;
background-color: #c7000b;
}
.news_info {
width: 100%;
height: 65vh;
position: relative;
}
.info1 {
width: 30%;
float: left;
height: 65vh;
margin-right: 5%;
background-color: rgba(248, 248, 248);
cursor: pointer;
}
.info_main {
width: 100%;
height: auto;
overflow: hidden;
}
.info_main img {
width: 100%;
height: 35vh;
}
.info_words {
width: 100%;
height: 30vh;
}
.words_container {
padding: 5% 5%;
width: 90%;
height: 90%;
/* display: inline-block; */
}
.container_first {
width: 100%;
height: auto;
}
.container_first span {
font-size: 18px;
font-weight: 600;
line-height: 34px;
}
.container_second {
width: 100%;
font-size: 15px;
margin-top: 3%;
line-height: 30px;
height: auto;
}
.container_third {
width: 100%;
font-size: 14px;
margin-top: 5%;
line-height: 23px;
color: #555;
}
.info3 {
width: 30%;
float: right;
height: 65vh;
position: relative;
overflow: inherit;
/* border-bottom: 1px solid red; */
background-color: rgba(248, 248, 248);
}
.info_info1 {
padding: 3% 5%;
width: 90%;
height: auto;
cursor: pointer;
color: #666;
}
.info1_top {
margin-top: 10%;
}
.info_word {
padding: 0px 0px;
margin: 0px 0px;
font-size: 17px;
color: #111111;
}
.info_time {
color: inherit;
}
.info_title {
width: 7%;
height: 5vh;
position: absolute;
line-height: 5vh;
top: 0;
text-align: center;
font-size: 10px;
color: #ffffff;
z-index: 2;
background-color: rgba(90, 90, 90, 0.7);
}
.f2 {
width: 20%;
}
3.3 效果图
转载：https://blog.csdn.net/m0_59792745/article/details/127519574
查看评论