我创建了一个类似边框的关键帧CSS样式。当我将鼠标悬停在按钮上时,类似边框的动画应该从右上开始到左上,然后到左下,然后再到右下,最后再到右上。当我将鼠标悬停在按钮上时,先前的序列应该发生并且已经创建。然而;悬停时,按钮内的文本会移动,这会使按钮看起来很奇怪。
我查看了此question的答案,但由于我未在悬停时使用边框样式,因此不适用于我的情况。相反,我更改了三个跨度而不是边框的背景颜色,宽度和高度。
如何使用动画创建方法来防止这种抖动?
CodePen:https://codepen.io/Tes3awy/pen/ZZRpBW
HTML
<div class="wrapper">
<a class="custom-btn" href="https://mince.34way.com/about/" title="About">
About Us
<span class="border-top"></span>
<span class="border-right"></span>
<span class="border-bottom"></span>
<span class="border-left"></span>
</a>
</div>
CSS
body {
position: relative;
height: 100vh;
}
.wrapper {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
.custom-btn {
position: relative;
width: 183px;
height: 55px;
line-height: 55px;
display: inline-block;
text-align: center;
text-transform: uppercase;
margin: 0 auto;
border: 2px solid #77a942;
color: #77a942;
text-decoration: none;
}
span[class^="border-"] {
opacity: 0;
}
.border-top {
position: absolute;
top: -2px;
right: 0;
width: 100%;
height: 3px;
background-color: transparent;
}
.border-left {
position: absolute;
top: 0;
left: -2px;
width: 3px;
height: 100%;
background-color: transparent;
}
.border-bottom {
position: absolute;
left: 0;
bottom: -2px;
width: 100%;
height: 3px;
background-color: transparent;
}
.border-right {
position: absolute;
bottom: 0;
right: -2px;
width: 3px;
height: 100%;
background-color: transparent;
}
.custom-btn:hover .border-top {
animation: animateTop .2s 1 alternate ease forwards;
}
.custom-btn:hover .border-left {
animation: animateLeft .2s 1 alternate ease forwards;
animation-delay: .2s;
}
.custom-btn:hover .border-bottom {
animation: animateBottom .2s 1 alternate ease forwards;
animation-delay: .4s;
}
.custom-btn:hover .border-right {
animation: animateRight .2s 1 alternate ease forwards;
animation-delay: .6s;
}
@keyframes animateTop {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 50%;
height: 3px;
opacity: 1;
background-color: #77a942;
}
100% {
width: 100%;
height: 3px;
opacity: 1;
background-color: #77a942;
}
}
@keyframes animateLeft {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 3px;
height: 50%;
opacity: 1;
background-color: #77a942;
}
100% {
width: 3px;
height: 100%;
opacity: 1;
background-color: #77a942;
}
}
@keyframes animateBottom {
0% {
width: 0;
height: 0;
opacity: 0;
background-color:#77a942;
}
50% {
width: 50%;
height: 3px;
opacity: 1;
background-color:#77a942;
}
100% {
width: 100%;
height: 3px;
opacity: 1;
background-color:#77a942;
}
}
@keyframes animateRight {
0% {
width: 0;
height: 0;
opacity: 0;
background-color: #77a942;
}
50% {
width: 3px;
height: 50%;
opacity: 1;
background-color: #77a942;
}
100% {
width: 3px;
height: 100%;
opacity: 1;
background-color: #77a942;
}
}
答案 0 :(得分:0)
当您将事物翻译50%时,它们最终可能会介于像素之间。使用过渡时,CSS倾向于改变其舍入到哪个像素的想法。尝试确保将文本居中的按钮的高度/宽度使CSS具有确定的位置,当您将其除以一半时可以放置该位置。