主要知识点:
background
radial-gradient
linear-gradient
说明：一个元素可以设置多重背景图像(背景色 <‘ background-color ‘> 不能设置多组)。
效果图片
bg-img.png
html文件
<div class="bg-1"></div>
<div class="bg-2"></div>
<div class="bg-3"></div>
<div class="bg-4"></div>
<div class="bg-5"></div>
<div class="bg-6"></div>
<div class="bg-7"></div>
<div class="bg-8"></div>
<div class="bg-9"></div>
<div class="bg-10"></div>
css文件
html,body{background-color: #efefef}
div{
width: 200px;
height: 100px;
margin: 20px auto;
}
.bg-1{
background-color: #fff;
background-image: linear-gradient(90deg, rgba(85, 136, 170, 0.5), 50%, transparent 0), linear-gradient(rgba(85, 136, 170, 0.5) 50%, transparent 0);
background-size: 19px 19px;
}
.bg-2{
background-color: rgba(85, 136, 170, 0.5);
background-image: linear-gradient(#fff 1px, transparent 0),linear-gradient(90deg, #fff 1px, transparent 0);
background-size: 20px 20px;
}
.bg-3{
background-color: rgba(85, 136, 170, 0.5);
background-image: linear-gradient(#fff 2px, transparent 0),
linear-gradient(90deg, #fff 2px, transparent 0),
linear-gradient(rgba(255,255,255,.3) 1px, transparent 0),
linear-gradient(90deg,rgba(255,255,255,.3) 1px, transparent 0);
background-size: 50px 50px, 50px 50px,10px 10px, 10px 10px;
background-position: -2px -2px;
}
.bg-4{
background-color: #9ed7da;
background-image: radial-gradient(rgba(255,255,255,.5) 40%, transparent 0);
background-size: 20px 20px;
}
.bg-5{
background-color: #9ed7da;
background-image: radial-gradient(rgba(255,255,255,.3) 50%, transparent 0), radial-gradient(rgba(255,255,255,.3) 80%, transparent 0);
background-size: 20px 20px;
}
.bg-6{
background-color: #eee;
background-image: linear-gradient(45deg, rgba(0,0,0,.1) 50%, transparent 0),linear-gradient(315deg, rgba(0,0,0,.1) 50%, transparent 0);
background-size: 20px 20px;
}
.bg-7{
background-color: #eee;
background-image:
linear-gradient(45deg, #bbb 25%, transparent 0),
linear-gradient(45deg, transparent 75%, #bbb 0),
linear-gradient(45deg, #bbb 25%, transparent 0),
linear-gradient(45deg, transparent 75%, #bbb 0);
background-size: 20px 20px;
background-position: 0 0, 10px 10px,10px 10px, 20px 20px;
}
.bg-8{
background-color: hsl(20, 40%, 90%);
background-image:
linear-gradient(90deg, #a8ffe9 17%, transparent 0),
linear-gradient(90deg, rgba(247, 247, 202, 0.99) 37%, transparent 0),
linear-gradient(90deg, #feb3fb 47%, transparent 0);
background-size: 7% 100%, 17% 100%, 23% 100%;
}
.bg-9{
background-color: #58A;
background-image: -webkit-linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
background-image: linear-gradient(135deg, rgba(255, 255, 255, .15) 25%, transparent 25%, transparent 50%, rgba(255, 255, 255, .15) 50%, rgba(255, 255, 255, .15) 75%, transparent 75%, transparent);
background-size: 30px 30px;
-webkit-animation: bg-stripes 2s linear infinite;
animation: bg-stripes 2s linear infinite;
}
@keyframes bg-stripes {
0% {
background-position: 0 0;
}
100% {
background-position: 30px 0;
}
}
.bg-10{
box-sizing: border-box;
border: 10px solid transparent;
background: linear-gradient(#fff,#ddd) content-box, repeating-linear-gradient(-45deg, #d50000 0, #d50000 12.5%, transparent 0, transparent 25%, #5588aa 0, #58a 37.5%, transparent 0, transparent 50%) 50% / 20px 20px border-box;
}
