背景变色
<div class="button"><span>hover me to change</span></div>
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.button {
margin: 40px auto;
width: 200px;
height: 60px;
padding: 0 30px;
line-height: 60px;
text-align: center;
position: relative;
appearance: none;
background: #f72359;
border: none;
color: white;
font-size: 1.2em;
cursor: pointer;
outline: none;
overflow: hidden;
border-radius: 100px;
}
.button span {
position: relative;
}
.button::before {
--size: 0;
content: '';
position: absolute;
left: var(--x);
top: var(--y);
width: var(--size);
height: var(--size);
background: radial-gradient(circle closest-side, #4405f7, transparent);
transform: translate(-50%, -50%);
transition: width 0.2s ease, height 0.2s ease;
}
.button:hover::before {
--size: 400px;
}
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document.querySelector('.button').addEventListener('mousemove', function (e) {
const x = e.pageX - this.offsetLeft;
const y = e.pageY - this.offsetTop;
this.style.setProperty('--x', `${x}px`);
this.style.setProperty('--y', `${y}px`);
});
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边框动画
<div class="button">
<div class="button__content">hover me to change</div>
</div>
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.btn-container {
padding: 10px;
.button {
width: 200px;
height: 60px;
position: relative;
background: #fff;
margin: 30px auto;
box-sizing: border-box;
cursor: pointer;
text-align: center;
line-height: 60px;
&::before {
content: '';
width: 0;
height: 0;
background: #00adb5;
position: absolute;
top: -1px;
right: -1px;
z-index: 0;
transition: width 0.5s, height 0.5s;
}
&::after {
content: '';
width: 0;
height: 0;
background: #00adb5;
position: absolute;
bottom: -1px;
left: -1px;
z-index: 0;
transition: width 0.5s, height 0.5s;
}
&:hover::before {
width: calc(100% + 2px);
height: calc(100% + 2px);
}
&:hover::after {
width: calc(100% + 2px);
height: calc(100% + 2px);
}
.button__content {
height: 100%;
width: 100%;
position: absolute;
left: 0;
top: 0;
z-index: 1;
background: #fff;
}
}
}
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