我依靠增加中心元素的顶部和底部填充来产生悬停效果,如下所示。
保持这种效果,有什么方法可以做到:
要为它们各自的图标腾出空间,请稍微降低文本(帮助和注销)(例如,我知道我可以进行position:relative,然后top:7px),但这会使鼠标悬停动画效果,因为“白色”扩展的中心应该在绿色标题的中心)
现在将文本放下,我想向两个“按钮”中的每个按钮添加一个透明的背景精灵-一个用于“帮助”的问号符号,另一个用于“注销”的符号。因此背景仍然是绿色,在绿色背景的上方,我将看到每个按钮的符号,以及每个符号下方的文本。如果我只是做 .help {background:url()no-repeat -2px 0;},例如,由于元素的高度增加,图像会随着悬停效果一起移动。
我将用于背景/图标的精灵的形式为: {url(../ theme / images / top_sprites.png)不重复-2px 0;}
那么如何在保留文本,绿色背景和动画的同时,将精灵作为这些“按钮”的图标呢?请注意,添加了边框以使动画/效果的工作方式更加清晰。
.header {
height: 50px;
background-color: #008b10;
}
.menu {
padding: 16px;
text-align:center;
font-family: Raleway, arial, sans-serif;
float:left;
overflow: visible;
border: 1px solid blue;
}
.menu a:hover {
background-color: #ffffff;
color: #008b10;
padding: 16px 5px;
}
.menu a {
/*box-sizing: border-box;*/
/*float:left*/
text-decoration: none;
transition: 0.4s;
color: #ffffff;
font-size: 13px;
text-decoration: none;
padding: 0 5px;
border: 1px solid red;
}
<div class=header>
<div class="menu">
<a class="help" href="#" id="online_help">Help</a>
<a class="logout" href="#" onclick="openLogout();">Logout</a>
</div>
</div>
答案 0 :(得分:1)
.header {
height: 50px;
background-color: #008b10;
}
.menu {
padding: 16px;
text-align:center;
font-family: Raleway, arial, sans-serif;
float:left;
overflow: visible;
border: 1px solid blue;
}
.menu a:hover {
background-color: #ffffff;
color: #008b10;
padding: 16px 5px;
}
.menu a {
/*box-sizing: border-box;*/
/*float:left*/
text-decoration: none;
transition: 0.4s;
color: #ffffff;
font-size: 13px;
text-decoration: none;
padding: 0 5px;
border: 1px solid red;
}
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.3.1/css/all.css" integrity="sha384-mzrmE5qonljUremFsqc01SB46JvROS7bZs3IO2EmfFsd15uHvIt+Y8vEf7N7fWAU" crossorigin="anonymous">
<div class=header>
<div class="menu">
<a class="help" href="#" id="online_help">Help <i class="far fa-question-circle"></i>
</a>
<a class="logout" href="#" onclick="openLogout();">Logout <i class="fas fa-sign-out-alt"></i>
</a>
</div>
</div>
答案 1 :(得分:1)
---CSS---
a:hover {
cursor: pointer;
}
.a-border {
display: inline-block;
position: relative;
color: white;
padding: 0.5rem 0.25rem;
margin: 0 1.5rem;
overflow: hidden;
}
.a-border::after {
content: url("../img/more-btn-bottom.png");
display: block;
position: absolute;
bottom: 0;
left: -0.25rem;
border: none;
transform: scale(0, 1);
transform-origin: 0% 100%;
transition: transform 0.4s;
}
a:hover .a-border::after {
transform:scale(1, 1);
}
a.focused .a-border::after {
transform: none;
}
---JS---
function menuclick(underline) {
var focused = document.getElementsByClassName("focused");
var i;
for (i = 0; i < focused.length; i++) {
var under = focused[i];
if (under.classList.contains('focused')) {
under.classList.remove('focused');
}
}
if (!underline.parentElement.classList.contains('focused')) {
underline.parentElement.classList.add('focused');
}
}
---HTML---
<a href="#about"><span class="a-border" onclick="menuclick(this)">ABOUT US</span></a>
<a href="#creater"><span class="a-border" onclick="menuclick(this)">CREATERS</span></a>
<a href="#news"><span class="a-border" onclick="menuclick(this)">NEWS</span></a>
<a href="#contact"><span class="a-border" onclick="menuclick(this)">CONTACT</span></a>
答案 2 :(得分:0)
您可以在锚点上为伪元素设置动画。
示例:
.header {
min-height: 50px;
background-color: #008b10;
}
.menu {
padding: 0 16px;
font-family: Raleway, arial, sans-serif;
border: 1px solid blue;
}
.menu a {
text-decoration: none;
transition: 0.4s;
color: #ffffff;
font-size: 13px;
padding: 16px 5px;
display: inline-flex;
align-items: center;
flex-direction: column;
position: relative;
}
.menu a span {
position: relative;
}
.menu a:before {
transition: 0.4s;
content: '';
display: block;
position: absolute;
background: white;
opacity: 0;
transform: scaleY(.5);
left: 0;
right: 0;
top: 0;
bottom: 0;
}
.menu a:hover:before {
transform: scaleY(1);
opacity: 1;
}
.menu a img {
max-width: 15px;
display: block;
position: relative;
padding-bottom: 4px;
}
.menu a:hover {
color: #008b10;
}
<div class=header>
<div class="menu">
<a href="#">
<img src="https://unsplash.it/15">
<span>Help</span>
</a>
<a href="#">
<img src="https://unsplash.it/15">
<span>Logout</span>
</a>
</div>
</div>