用css实现一个按钮的效果
css是很神奇的一种东西， 你给它一个模板， 告诉它怎么来， 它就给你一个非常漂亮的效果：
比如实现这种开关的效果：
<label class="switch">
<div class="round"><input name="onoff" id="onoff" type="checkbox">
<div class="back"><label for="onoff" class="but"><span class="on">0</span><span class="off">I</span></label></div>
</div>
</label>
这是html的结构：（本身没有任何生气， 但是使用了css之后， 它的强大的效果就出来了）
input {
display: none
}
.on,.off {
position: absolute;
text-align: center;
text-shadow: inset 1px 1px 1px black;
width: 100%;
}
.on {
color: #fff;
top: 10px;
transition: all 0.1s;
font-family: sans-serif
}
.off {
color: #636161;
bottom: 5px;
transition: all 0.1s;
transform: scaleY(0.85);
}
.but {
background-color: #000;
border-radius: 400px 400px 400px 400px / 400px 400px 300px 300px;
border-bottom-width: 0px;
box-shadow: inset 8px 6px 5px -7px rgba(0,0,0,1)
,inset -8px 6px 5px -7px rgba(0,0,0,1)
,inset 0 -3px 2px -2px rgba(200,200,200,.5)
,0 3px 3px -2px rgba(0,0,0,1)
,inset 0 -230px 60px -200px rgba(255,255,255,.2)
,inset 0 220px 40px -200px rgba(0,0,0,.3);
display: block;
font-size: 17px;
height: 60px;
position: relative;
transition: all 0.2s;
width: 40px;
}
.back {
background-color: #000;
background-image: -webkit-linear-gradient(0deg, transparent 30%, transparent 65%)
,-webkit-linear-gradient(0deg, rgba(245, 245, 245, 0) 30%, rgba(150,150,150,.1) 50%, rgba(150,150,150,0) 70%);
border-radius: 115px;
box-sizing: border-box;
height: 85px;
padding: 4px 4px;
transition: all 0.2s;
width: 50px;
}
input:checked + .back .on,input:checked + .back .off {
text-shadow: inset 1px 1px 1px black;
}
input:checked + .back .on {
color: rgb(141, 141, 141);
top: 10px;
transform: scaleY(0.85);
}
input:checked + .back .off {
color: #fff;
bottom: 5px;
transform: scaleY(1);
}
input:checked + .back .but {
background: #232323;
background-image: -webkit-radial-gradient(55% 18%,circle closest-corner,rgba(0,0,0,.3) ,rgba(0,0,0,0));
border-radius: 410px 410px 410px 410px / 310px 310px 410px 410px;
box-shadow: inset 8px -4px 5px -7px rgba(0,0,0,1)
,inset -8px -4px 5px -7px rgba(0,0,0,1)
, 0 -3px 8px -4px rgba(250,250,250,.4)
,inset 0 3px 4px -2px rgba(10,10,10,1)
,inset 0 280px 40px -200px rgba(0,0,0,.2)
,inset 0 -200px 40px -200px rgba(180,180,180,.2);
margin-top: 20px;
}
input:checked + .back {
background-image: -webkit-linear-gradient(90deg, black 30%, transparent 65%)
,-webkit-linear-gradient(180deg, rgba(250,250,250,0) 0%, rgba(250,250,250,.4) 50%, rgba(150,150,150,0) 100%);
box-shadow: 28px 28px 28px -28px rgba(0,0,0,.1)
,-28px 28px 28px -22px rgba(0,0,0,.1)
,0 30px 30px 0px rgba(0,0,0,.2)
,inset 0 1px 2px 0 rgba(0,0,0,.6);
padding: 2px 4px;
}
.l,.r {
margin: 0 auto;
text-align: center;
}
.round,#onoff,.back,.but,.on,.off {
user-select: none;
}
用css实现一个心型按钮的形状：
这种效果也是可以通过html和css来实现的， 我们先来看看html部分的代码：
<div class="love">
<input id="switch" type="checkbox">
<label class="love-heart" for="switch">
<i class="left"></i>
<i class="right"></i>
<i class="bottom"></i>
<div class="round"></div>
</label>
</div>
来看看css部分的代码：
.love-heart:before,#switch {
display: none;
}
.love-heart, .love-heart::after {
border-color: hsl(231deg 28% 86%);
border: 1px solid;
border-top-left-radius: 100px;
border-top-right-radius: 100px;
width: 10px;
height: 8px;
border-bottom: 0
}
.round {
position: absolute;
z-index: 1;
width: 8px;
height: 8px;
background: hsl(0deg 0% 100%);
box-shadow: rgb(0 0 0 / 24%) 0px 0px 4px 0px;
border-radius: 100%;
left: 0px;
bottom: -1px;
transition: all .5s ease;
animation: check-animation2 .5s forwards;
}
input:checked + label .round {
transform: translate(0px, 0px);
animation: check-animation .5s forwards;
background-color: hsl(0deg 0% 100%);
}
@keyframes check-animation {
0% {
transform: translate(0px, 0px);
}
50% {
transform: translate(0px, 7px);
}
100% {
transform: translate(7px, 7px);
}
}
@keyframes check-animation2 {
0% {
transform: translate(7px, 7px);
}
50% {
transform: translate(0px, 7px);
}
100% {
transform: translate(0px, 0px);
}
}
.love-heart {
box-sizing: border-box;
position: relative;
transform: rotate(-45deg) translate(-50%, -33px) scale(4);
display: block;
border-color: hsl(231deg 28% 86%);
cursor: pointer;
top: 0;
}
input:checked + .love-heart, input:checked + .love-heart::after, input:checked + .love-heart .bottom {
border-color: hsl(347deg 81% 61%);
box-shadow: inset 6px -5px 0px 2px hsl(347deg 99% 72%);
}
.love-heart::after, .love-heart .bottom {
content: "";
display: block;
box-sizing: border-box;
position: absolute;
border-color: hsl(231deg 28% 86%);
}
.love-heart::after {
right: -9px;
transform: rotate(90deg);
top: 7px;
}
.love-heart .bottom {
width: 11px;
height: 11px;
border-left: 1px solid;
border-bottom: 1px solid;
border-color: hsl(231deg 28% 86%);
left: -1px;
top: 5px;
border-radius: 0px 0px 0px 5px;
}
非常的美妙？ 不是吗？
用css实现一个input输入框的效果：
先看看html的结构：
<div class="form-control">
<input type="value" required="">
<label>
<span style="transition-delay:0ms">U</span><span style="transition-delay:50ms">s</span><span style="transition-delay:100ms">e</span><span style="transition-delay:150ms">r</span><span style="transition-delay:200ms">n</span><span style="transition-delay:250ms">a</span><span style="transition-delay:300ms">m</span><span style="transition-delay:350ms">e</span>
</label>
</div>
在这个结构的基础上， 我们加上css样式：
.form-control {
position: relative;
margin: 20px 0 40px;
width: 190px;
}
.form-control input {
background-color: transparent;
border: 0;
border-bottom: 2px #fff solid;
display: block;
width: 100%;
padding: 15px 0;
font-size: 18px;
color: #fff;
}
.form-control input:focus,
.form-control input:valid {
outline: 0;
border-bottom-color: lightblue;
}
.form-control label {
position: absolute;
top: 15px;
left: 0;
pointer-events: none;
}
.form-control label span {
display: inline-block;
font-size: 18px;
min-width: 5px;
color: #fff;
transition: 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}
.form-control input:focus+label span,
.form-control input:valid+label span {
color: lightblue;
transform: translateY(-30px);
}
用css实现一个卡片的效果：
上代码：
<div class="flip">
<div class="content">
<div class="front">
<h2>Front</h2>
<p>Front Description</p>
</div>
<div class="back">
<h2>Back</h2>
<p>Back Description</p>
</div>
</div>
</div>
css部分：
.flip {
box-shadow: 0 0 10px rgba(128, 128, 128, 0.5);
padding: 1em;
width: 190px;
height: 254px;
transform-style: preserve-3d;
transition: 3s ease;
}
.flip:hover {
transform: rotateY(180deg);
}
/* Content */
.flip .content {
transform-style: preserve-3d;
}
.flip .back, .flip .front {
transform-style: preserve-3d;
backface-visibility: hidden;
display: flex;
flex-direction: column;
}
.flip .back {
transform: rotateY(180deg);
position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;
}
.flip h2,
.flip p {
transform: translateZ(90px);
text-shadow: 0 0 3px black;
text-align: center;
}
.flip h2 {
font-size: 3em;
color: #fff;
letter-spacing: 1px;
}
.flip p {
font-size: 1em;
color: #eee;
line-height: 1.6em;
}
.flip::before,
.flip::after {
content: "";
top: 0;
left: 0;
right: 0;
bottom: 0;
position: absolute;
background-image: linear-gradient(purple, red);
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
transform: rotateY(180deg)translateZ(1px);
}
.flip::before {
transform: none;
background-image: linear-gradient(violet, orange);
background-position: center center;
background-repeat: no-repeat;
background-size: cover;
}
用css实现一个加载动画：
html部分：
<div aria-label="Orange and tan hamster running in a metal wheel" role="img" class="wheel-and-hamster">
<div class="wheel"></div>
<div class="hamster">
<div class="hamster__body">
<div class="hamster__head">
<div class="hamster__ear"></div>
<div class="hamster__eye"></div>
<div class="hamster__nose"></div>
</div>
<div class="hamster__limb hamster__limb--fr"></div>
<div class="hamster__limb hamster__limb--fl"></div>
<div class="hamster__limb hamster__limb--br"></div>
<div class="hamster__limb hamster__limb--bl"></div>
<div class="hamster__tail"></div>
</div>
</div>
<div class="spoke"></div>
</div>
接下来我们来看看css部分：
.wheel-and-hamster {
--dur: 1s;
position: relative;
width: 12em;
height: 12em;
font-size: 14px;
}
.wheel,
.hamster,
.hamster div,
.spoke {
position: absolute;
}
.wheel,
.spoke {
border-radius: 50%;
top: 0;
left: 0;
width: 100%;
height: 100%;
}
.wheel {
background: radial-gradient(100% 100% at center,hsla(0,0%,60%,0) 47.8%,hsl(0,0%,60%) 48%);
z-index: 2;
}
.hamster {
animation: hamster var(--dur) ease-in-out infinite;
top: 50%;
left: calc(50% - 3.5em);
width: 7em;
height: 3.75em;
transform: rotate(4deg) translate(-0.8em,1.85em);
transform-origin: 50% 0;
z-index: 1;
}
.hamster__head {
animation: hamsterHead var(--dur) ease-in-out infinite;
background: hsl(30,90%,55%);
border-radius: 70% 30% 0 100% / 40% 25% 25% 60%;
box-shadow: 0 -0.25em 0 hsl(30,90%,80%) inset,
0.75em -1.55em 0 hsl(30,90%,90%) inset;
top: 0;
left: -2em;
width: 2.75em;
height: 2.5em;
transform-origin: 100% 50%;
}
.hamster__ear {
animation: hamsterEar var(--dur) ease-in-out infinite;
background: hsl(0,90%,85%);
border-radius: 50%;
box-shadow: -0.25em 0 hsl(30,90%,55%) inset;
top: -0.25em;
right: -0.25em;
width: 0.75em;
height: 0.75em;
transform-origin: 50% 75%;
}
.hamster__eye {
animation: hamsterEye var(--dur) linear infinite;
background-color: hsl(0,0%,0%);
border-radius: 50%;
top: 0.375em;
left: 1.25em;
width: 0.5em;
height: 0.5em;
}
.hamster__nose {
background: hsl(0,90%,75%);
border-radius: 35% 65% 85% 15% / 70% 50% 50% 30%;
top: 0.75em;
left: 0;
width: 0.2em;
height: 0.25em;
}
.hamster__body {
animation: hamsterBody var(--dur) ease-in-out infinite;
background: hsl(30,90%,90%);
border-radius: 50% 30% 50% 30% / 15% 60% 40% 40%;
box-shadow: 0.1em 0.75em 0 hsl(30,90%,55%) inset,
0.15em -0.5em 0 hsl(30,90%,80%) inset;
top: 0.25em;
left: 2em;
width: 4.5em;
height: 3em;
transform-origin: 17% 50%;
transform-style: preserve-3d;
}
.hamster__limb--fr,
.hamster__limb--fl {
clip-path: polygon(0 0,100% 0,70% 80%,60% 100%,0% 100%,40% 80%);
top: 2em;
left: 0.5em;
width: 1em;
height: 1.5em;
transform-origin: 50% 0;
}
.hamster__limb--fr {
animation: hamsterFRLimb var(--dur) linear infinite;
background: linear-gradient(hsl(30,90%,80%) 80%,hsl(0,90%,75%) 80%);
transform: rotate(15deg) translateZ(-1px);
}
.hamster__limb--fl {
animation: hamsterFLLimb var(--dur) linear infinite;
background: linear-gradient(hsl(30,90%,90%) 80%,hsl(0,90%,85%) 80%);
transform: rotate(15deg);
}
.hamster__limb--br,
.hamster__limb--bl {
border-radius: 0.75em 0.75em 0 0;
clip-path: polygon(0 0,100% 0,100% 30%,70% 90%,70% 100%,30% 100%,40% 90%,0% 30%);
top: 1em;
left: 2.8em;
width: 1.5em;
height: 2.5em;
transform-origin: 50% 30%;
}
.hamster__limb--br {
animation: hamsterBRLimb var(--dur) linear infinite;
background: linear-gradient(hsl(30,90%,80%) 90%,hsl(0,90%,75%) 90%);
transform: rotate(-25deg) translateZ(-1px);
}
.hamster__limb--bl {
animation: hamsterBLLimb var(--dur) linear infinite;
background: linear-gradient(hsl(30,90%,90%) 90%,hsl(0,90%,85%) 90%);
transform: rotate(-25deg);
}
.hamster__tail {
animation: hamsterTail var(--dur) linear infinite;
background: hsl(0,90%,85%);
border-radius: 0.25em 50% 50% 0.25em;
box-shadow: 0 -0.2em 0 hsl(0,90%,75%) inset;
top: 1.5em;
right: -0.5em;
width: 1em;
height: 0.5em;
transform: rotate(30deg) translateZ(-1px);
transform-origin: 0.25em 0.25em;
}
.spoke {
animation: spoke var(--dur) linear infinite;
background: radial-gradient(100% 100% at center,hsl(0,0%,60%) 4.8%,hsla(0,0%,60%,0) 5%),
linear-gradient(hsla(0,0%,55%,0) 46.9%,hsl(0,0%,65%) 47% 52.9%,hsla(0,0%,65%,0) 53%) 50% 50% / 99% 99% no-repeat;
}
/* Animations */
@keyframes hamster {
from, to {
transform: rotate(4deg) translate(-0.8em,1.85em);
}
50% {
transform: rotate(0) translate(-0.8em,1.85em);
}
}
@keyframes hamsterHead {
from, 25%, 50%, 75%, to {
transform: rotate(0);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(8deg);
}
}
@keyframes hamsterEye {
from, 90%, to {
transform: scaleY(1);
}
95% {
transform: scaleY(0);
}
}
@keyframes hamsterEar {
from, 25%, 50%, 75%, to {
transform: rotate(0);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(12deg);
}
}
@keyframes hamsterBody {
from, 25%, 50%, 75%, to {
transform: rotate(0);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(-2deg);
}
}
@keyframes hamsterFRLimb {
from, 25%, 50%, 75%, to {
transform: rotate(50deg) translateZ(-1px);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(-30deg) translateZ(-1px);
}
}
@keyframes hamsterFLLimb {
from, 25%, 50%, 75%, to {
transform: rotate(-30deg);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(50deg);
}
}
@keyframes hamsterBRLimb {
from, 25%, 50%, 75%, to {
transform: rotate(-60deg) translateZ(-1px);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(20deg) translateZ(-1px);
}
}
@keyframes hamsterBLLimb {
from, 25%, 50%, 75%, to {
transform: rotate(20deg);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(-60deg);
}
}
@keyframes hamsterTail {
from, 25%, 50%, 75%, to {
transform: rotate(30deg) translateZ(-1px);
}
12.5%, 37.5%, 62.5%, 87.5% {
transform: rotate(10deg) translateZ(-1px);
}
}
@keyframes spoke {
from {
transform: rotate(0);
}
to {
transform: rotate(-1turn);
}
}
