CSS奇思妙想图形(心形、气泡三角形、切角、梯形、饼图等)
今天看到一篇不错文章,在原来CSS3图形创建基础上扩展了很多。
这里记录总结下
心形

原理:利用 圆形 和 正方形实现
HTML:
<div class="heartShaped">
<h1>heartShaped</h1>
</div>
CSS:
.heartShaped {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%) rotate(45deg);
background: rgba(255, 20, 147, .85);
width: 140px;
line-height: 140px;
text-align: center;
color: white;
font-size: 12px;
}
.heartShaped:before, .heartShaped:after {
content: '';
position: absolute;
top:;
left: -70px;
width: 140px;
height: 140px;
border-radius: 50%;
background: rgb(255, 20, 147);
z-index: -1;
}
.heartShaped:after {
top: -70px;
left:;
}
气泡三角形
原理:利用 border 的 transparent 特性实现
HTML:
<div class="bubbly">
<p>heartShaped</p>
</div>
CSS:
.bubbly {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
background: #00aabb;
border-radius: .4em;
width: 260px;
padding: 60px 20px;
text-align: center;
color: white;
font-size: 200%;
}
.bubbly:after {
content: '';
position: absolute;
bottom:;
left: 50%;
border: 34px solid transparent;
border-top-color: #00aabb;
border-bottom:;
border-left:;
margin: 0 0 -34px -17px;
}
切角
原理:使用线性渐变实现
HTML:
<div class="notching">
<p>heartShaped</p>
</div>
CSS:
.notching {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 160px;
padding: 60px 20px;
text-align: center;
color: white;
font-size: 200%;
}
.notching {
background: linear-gradient(135deg, transparent 15px, deeppink 0) top left, linear-gradient(-135deg, transparent 15px, deeppink 0) top right, linear-gradient(-45deg, transparent 15px, deeppink 0) bottom right, linear-gradient(45deg, transparent 15px, deeppink 0) bottom left;
background-size: 50% 50%;
background-repeat: no-repeat;
}
弧形切角

原理:使用径向渐变实现
HTML:
<div class="arc">
<p>arc</p>
</div>
CSS:
.arc {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 60px;
padding: 60px;
text-align: center;
color: white;
font-size: 200%;
}
.arc {
background: radial-gradient(circle at top left, transparent 15px, yellowgreen 0) top left, radial-gradient(circle at top right, transparent 15px, yellowgreen 0) top right, radial-gradient(circle at bottom right, transparent 15px, yellowgreen 0) bottom right, radial-gradient(circle at bottom left, transparent 15px, yellowgreen 0) bottom left;
background-size: 50% 50%;
background-repeat: no-repeat;
}
单个颜色实现 hover 和 active 时的明暗变化效果


原理:利用伪类及透明度实现
HTML:
<div class="pesudo">
<p>pesudo</p>
</div>
CSS:
.pesudo {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 120px;
padding: 60px;
text-align: center;
color: white;
font-size: 200%;
border-radius: 1em;
background: #00aabb;
cursor: pointer;
}
.pesudo:before {
position: absolute;
top:;
right:;
bottom:;
left:;
z-index: -1;
border-radius: 1em;
background: rgba(0, 0, 0, .1);
}
.pesudo:hover:before {
content: "";
}
.pesudo:after {
position: absolute;
top:;
right:;
bottom:;
left:;
z-index: -1;
border-radius: 1em;
background: rgba(255, 255, 255, .2);
}
.pesudo:active:after {
content: "";
}
梯形

原理:利用伪类加旋转透视实现
HTML:
<div class="trapezoid">
<p>trapezoid</p>
</div>
CSS
.trapezoid {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 160px;
padding: 60px;
text-align: center;
color: white;
font-size: 200%;
}
.trapezoid:before {
content: "";
position: absolute;
top:;
right:;
bottom:;
left:;
transform: perspective(40px) scaleY(1.3) rotateX(5deg);
transform-origin: bottom;
background: deeppink;
z-index: -1;
}
饼图


原理:利用伪类、线性渐变、旋转实现
HTML:
<div class="pie">
<p>pie</p>
</div>
CSS
.pie {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 200px;
line-height: 200px;
border-radius: 50%;
text-align: center;
color: white;
font-size: 200%;
background-color: yellowgreen;
overflow: hidden;
background-image: linear-gradient(to right, transparent 50%, #655 0);
cursor: pointer;
}
.pie:before {
content: "";
position: absolute;
top: 0;
left: 50%;
width: 50%;
height: 100%;
background-color: inherit;
transform-origin: left;
z-index: -1;
transform: rotate(.1turn);
}
.pie:hover:before {
transition: all 1s;
transform: rotate(.45turn);
}
平行四边形

原理:利用伪类、拉伸实现
HTML:
<div class="parallelogram">
<p>parallelogram</p>
</div>
CSS
.parallelogram {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 280px;
line-height: 150px;
text-align: center;
color: white;
font-size: 200%;
}
.parallelogram:before {
content: '';
position: absolute;
top:;
right:;
bottom:;
left:;
background-color: #00aabb;
z-index: -1;
transform: skew(.08turn);
}
菱形

原理:利用伪类、旋转实现
HTML:
<div class="diamond">
<p>diamond</p>
</div>
CSS
.diamond {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 200px;
line-height: 200px;
text-align: center;
color: white;
font-size: 200%;
}
.diamond:before {
content: '';
position: absolute;
top:;
right:;
bottom:;
left:;
background-color: deeppink;
z-index: -1;
transform: rotateZ(45deg);
}
折角
原理:利用切角、伪类、渐变、旋转实现
HTML:
<div class="corner">
<p>corner</p>
</div>
CSS
.corner {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 120px;
line-height: 120px;
padding: 40px;
text-align: center;
color: white;
font-size: 200%;
background: linear-gradient(-150deg, transparent 1.5em, yellowgreen 0);
border-radius: .5em;
}
.corner:before {
content: '';
position: absolute;
top:;
right:;
background: linear-gradient(to left bottom, transparent 50%, rgba(0, 0, 0, .2) 0, rgba(0, 0, 0, .4)) 100% 0 no-repeat;
width: 1.73em;
height: 3em;
transform: translateY(-1.3em) rotate(-30deg);
transform-origin: bottom right;
border-bottom-left-radius: inherit;
box-shadow: -.2em .2em .3em -.1em rgba(0, 0, 0, .15);
}
spectiveBlur
纯 CSS 方案实现背景变暗效果(hover按钮触发)
HTML:
<div class="spectiveBlur">
<p>spectiveBlur</p>
</div>
CSS
.spectiveBlur {
position: absolute;
top: 50%;
left: 50%;
width: 220px;
line-height: 160px;
transform: translate(-50%, -50%);
border-radius: 10px;
overflow: hidden;
background: #E91E63;
color: #fff;
font-size: 200%;
text-align: center;
cursor: pointer;
transition: transform .2s;
}
.spectiveBlur:hover {
box-shadow: 0 0 0 1920px rgba(0, 0, 0, .7);
transform: translate(-50%, -50%) scale(1.2);
}
条纹背景图

原理:利用渐变实现
HTML
<div class="stripe">
<p>stripe</p>
</div>
CSS
.stripe {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 200px;
line-height: 200px;
text-align: center;
color: white;
font-size: 200%;
background: deeppink;
border-radius: .5em;
background: repeating-linear-gradient(45deg, #CC9999, #CC9999 15px, #CCCCCC 0, #CCCCCC 30px)
}
晴天(sun)(单标签实现)

原理:利用线性渐变、阴影、旋转实现
HTML:
<div class="sun">
<p>sun</p>
</div>
CSS
.sun {
position: absolute;
top: 50%;
left: 50%;
width: 200px;
height: 260px;
transform: translate(-50%, -50%);
text-align: center;
font-size: 200%;
color: #fff;
background: #0BF;
border-radius: 5px;
}
.sun:before {
content: "";
position: absolute;
width: 80px;
height: 80px;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
border-radius: 50%;
background: rgba(255, 238, 68, 1);
box-shadow: 0 0 0 15px rgba(255, 255, 0, 0.2), 0 0 15px #fff;
z-index: -10;
}
.sun:after {
content: "";
position: absolute;
top: 50%;
left: 50%;
height: 160px;
width: 160px;
transform: translate(-50%, -50%) rotate(30deg);
z-index: -100;
background-image: -webkit-linear-gradient(top, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0) 100%), -webkit-linear-gradient(left, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.8) 50%, rgba(255, 255, 255, 0) 100%);
background-size: 20px 100%, 100% 20px;
background-repeat: no-repeat;
background-position: center center, center center;
animation: sunRotate 10s linear infinite;
}
@keyframes sunRotate {
0% {
transform: translate(-50%, -50%) rotate(30deg);
}
100% {
transform: translate(-50%, -50%) rotate(390deg);
}
}
多云(cloudy)(单标签实现)

原理:利用线性渐变、阴影、缩放实现
HTML
<div class="cloudy">
<p>cloudy</p>
</div>
CSS
.cloudy {
position: absolute;
top: 50%;
left: 50%;
width: 200px;
height: 260px;
transform: translate(-50%, -50%);
text-align: center;
font-size: 200%;
color: #fff;
background: #2EB5E5;
border-radius: 5px;
}
.cloudy:before {
content: "";
text-indent: 23px;
font-size: 22px;
line-height: 40px;
color: #333;
position: absolute;
height: 50px;
width: 50px;
background: #FFFFFF;
left: 30%;
top: 45%;
transform: translate(-50%, -50%);
border-radius: 50%;
box-shadow: #FFFFFF 65px -15px 0 -5px, #FFFFFF 25px -25px, #FFFFFF 30px 10px, #FFFFFF 60px 15px 0 -10px, #FFFFFF 85px 5px 0 -5px, #C8C8C8 35px -35px, #C8C8C8 66px -27px 0 -5px, #C8C8C8 91px -10px 0 -8px;
animation: cloudy 5s ease-in-out infinite;
}
.cloudy:after {
content: "";
position: absolute;
top: 80%;
left: 50%;
height: 15px;
width: 120px;
background: rgba(0, 0, 0, .5);
border-radius: 50%;
transform: translate(-50%, -50%);
animation: cloudy_shadow 5s ease-in-out infinite;
}
@keyframes cloudy {
50% {
transform: translate(-50%, -70%);
}
100% {
transform: translate(-50%, -50%);
}
}
@keyframes cloudy_shadow {
50% {
transform: translate(-50%, -50%) scale(0.8);
background: rgba(0, 0, 0, .2);
}
100% {
transform: translate(-50%, -50%) scale(1);
background: rgba(0, 0, 0, .5);
}
}
更多效果可以参考原网站:CSS实现各种图形
PS:这些CSS效果都是奇技淫巧,不过可以加深对CSS样式的理解,值得尝试
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