彩色渐变
<div class="gradient-border" id="box" />
#box {
width: 400px;
height: 200px;
}
.gradient-border {
--borderWidth: 3px;
background: #1D1F20;
position: relative;
border-radius: var(--borderWidth);
}
.gradient-border:after {
content: '';
position: absolute;
top: calc(-1 * var(--borderWidth));
left: calc(-1 * var(--borderWidth));
height: calc(100% + var(--borderWidth) * 2);
width: calc(100% + var(--borderWidth) * 2);
background: linear-gradient(60deg, #f79533, #f37055, #ef4e7b, #a166ab, #5073b8, #1098ad, #07b39b, #6fba82);
border-radius: calc(2 * var(--borderWidth));
z-index: -1;
animation: animatedgradient 3s ease alternate infinite;
background-size: 300% 300%;
}
@keyframes animatedgradient {
0% {
background-position: 0% 50%;
}
50% {
background-position: 100% 50%;
}
100% {
background-position: 0% 50%;
}
}
阴影边框
<div class="box effect1">
<h3>Effect 1</h3>
</div>
<div class="box effect2">
<h3>Effect 2</h3>
</div>
<div class="box effect3">
<h3>Effect 3</h3>
</div>
<div class="box effect4">
<h3>Effect 4</h3>
</div>
<div class="box effect5">
<h3>Effect 5</h3>
</div>
<div class="box effect6">
<h3>Effect 6</h3>
</div>
<div class="box effect7">
<h3>Effect 7</h3>
</div>
<div class="box effect8">
<h3>Effect 8</h3>
</div>
body {background:#ccc}
.box h3{
text-align:center;
position:relative;
top:80px;
}
.box {
width:70%;
height:200px;
background:#FFF;
margin:40px auto;
}
/*==================================================
* Effect 1
* ===============================================*/
.effect1{
-webkit-box-shadow: 0 10px 6px -6px #777;
-moz-box-shadow: 0 10px 6px -6px #777;
box-shadow: 0 10px 6px -6px #777;
}
/*==================================================
* Effect 2
* ===============================================*/
.effect2
{
position: relative;
}
.effect2:before, .effect2:after
{
z-index: -1;
position: absolute;
content: "";
bottom: 15px;
left: 10px;
width: 50%;
top: 80%;
max-width:300px;
background: #777;
-webkit-box-shadow: 0 15px 10px #777;
-moz-box-shadow: 0 15px 10px #777;
box-shadow: 0 15px 10px #777;
-webkit-transform: rotate(-3deg);
-moz-transform: rotate(-3deg);
-o-transform: rotate(-3deg);
-ms-transform: rotate(-3deg);
transform: rotate(-3deg);
}
.effect2:after
{
-webkit-transform: rotate(3deg);
-moz-transform: rotate(3deg);
-o-transform: rotate(3deg);
-ms-transform: rotate(3deg);
transform: rotate(3deg);
right: 10px;
left: auto;
}
/*==================================================
* Effect 3
* ===============================================*/
.effect3
{
position: relative;
}
.effect3:before
{
z-index: -1;
position: absolute;
content: "";
bottom: 15px;
left: 10px;
width: 50%;
top: 80%;
max-width:300px;
background: #777;
-webkit-box-shadow: 0 15px 10px #777;
-moz-box-shadow: 0 15px 10px #777;
box-shadow: 0 15px 10px #777;
-webkit-transform: rotate(-3deg);
-moz-transform: rotate(-3deg);
-o-transform: rotate(-3deg);
-ms-transform: rotate(-3deg);
transform: rotate(-3deg);
}
/*==================================================
* Effect 4
* ===============================================*/
.effect4
{
position: relative;
}
.effect4:after
{
z-index: -1;
position: absolute;
content: "";
bottom: 15px;
right: 10px;
left: auto;
width: 50%;
top: 80%;
max-width:300px;
background: #777;
-webkit-box-shadow: 0 15px 10px #777;
-moz-box-shadow: 0 15px 10px #777;
box-shadow: 0 15px 10px #777;
-webkit-transform: rotate(3deg);
-moz-transform: rotate(3deg);
-o-transform: rotate(3deg);
-ms-transform: rotate(3deg);
transform: rotate(3deg);
}
/*==================================================
* Effect 5
* ===============================================*/
.effect5
{
position: relative;
}
.effect5:before, .effect5:after
{
z-index: -1;
position: absolute;
content: "";
bottom: 25px;
left: 10px;
width: 50%;
top: 80%;
max-width:300px;
background: #777;
-webkit-box-shadow: 0 35px 20px #777;
-moz-box-shadow: 0 35px 20px #777;
box-shadow: 0 35px 20px #777;
-webkit-transform: rotate(-8deg);
-moz-transform: rotate(-8deg);
-o-transform: rotate(-8deg);
-ms-transform: rotate(-8deg);
transform: rotate(-8deg);
}
.effect5:after
{
-webkit-transform: rotate(8deg);
-moz-transform: rotate(8deg);
-o-transform: rotate(8deg);
-ms-transform: rotate(8deg);
transform: rotate(8deg);
right: 10px;
left: auto;
}
/*==================================================
* Effect 6
* ===============================================*/
.effect6
{
position:relative;
-webkit-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-moz-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
}
.effect6:before, .effect6:after
{
content:"";
position:absolute;
z-index:-1;
-webkit-box-shadow:0 0 20px rgba(0,0,0,0.8);
-moz-box-shadow:0 0 20px rgba(0,0,0,0.8);
box-shadow:0 0 20px rgba(0,0,0,0.8);
top:50%;
bottom:0;
left:10px;
right:10px;
-moz-border-radius:100px / 10px;
border-radius:100px / 10px;
}
.effect6:after
{
right:10px;
left:auto;
-webkit-transform:skew(8deg) rotate(3deg);
-moz-transform:skew(8deg) rotate(3deg);
-ms-transform:skew(8deg) rotate(3deg);
-o-transform:skew(8deg) rotate(3deg);
transform:skew(8deg) rotate(3deg);
}
/*==================================================
* Effect 7
* ===============================================*/
.effect7
{
position:relative;
-webkit-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-moz-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
}
.effect7:before, .effect7:after
{
content:"";
position:absolute;
z-index:-1;
-webkit-box-shadow:0 0 20px rgba(0,0,0,0.8);
-moz-box-shadow:0 0 20px rgba(0,0,0,0.8);
box-shadow:0 0 20px rgba(0,0,0,0.8);
top:0;
bottom:0;
left:10px;
right:10px;
-moz-border-radius:100px / 10px;
border-radius:100px / 10px;
}
.effect7:after
{
right:10px;
left:auto;
-webkit-transform:skew(8deg) rotate(3deg);
-moz-transform:skew(8deg) rotate(3deg);
-ms-transform:skew(8deg) rotate(3deg);
-o-transform:skew(8deg) rotate(3deg);
transform:skew(8deg) rotate(3deg);
}
/*==================================================
* Effect 8
* ===============================================*/
.effect8
{
position:relative;
-webkit-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
-moz-box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
box-shadow:0 1px 4px rgba(0, 0, 0, 0.3), 0 0 40px rgba(0, 0, 0, 0.1) inset;
}
.effect8:before, .effect8:after
{
content:"";
position:absolute;
z-index:-1;
-webkit-box-shadow:0 0 20px rgba(0,0,0,0.8);
-moz-box-shadow:0 0 20px rgba(0,0,0,0.8);
box-shadow:0 0 20px rgba(0,0,0,0.8);
top:10px;
bottom:10px;
left:0;
right:0;
-moz-border-radius:100px / 10px;
border-radius:100px / 10px;
}
.effect8:after
{
right:10px;
left:auto;
-webkit-transform:skew(8deg) rotate(3deg);
-moz-transform:skew(8deg) rotate(3deg);
-ms-transform:skew(8deg) rotate(3deg);
-o-transform:skew(8deg) rotate(3deg);
transform:skew(8deg) rotate(3deg);
}