SOURCE

console 命令行工具 X clear

                    
>
console
body{
background:
radial-gradient(circle at 0% 50%, rgba(96, 16, 48, 0) 9px, #613 10px, rgba(96, 16, 48, 0) 11px) 0px 10px,  
radial-gradient(at 100% 100%, rgba(96, 16, 48, 0) 9px, #613 10px, rgba(96, 16, 48, 0) 11px),  
#8a3;   
background-size: 20px 20px;
}