css实现斜角边框
.dot{
width:2px;height:2px;border-radius: 100%;background-color: #c6a35e;display: block;position: absolute;z-index: 999
}
.dot-tl{left:0px; top:0px;}
.dot-tr{right:0px; top:0px;}
.dot-bl{left:0px; bottom:0px;}
.dot-br{right:0px; bottom:0px;}
.sbg{
padding:15px 15px ;
background: #fff;
background:
linear-gradient(45deg, transparent 6px, #fff 0)bottom left ,
linear-gradient(-45deg, transparent 6px, #fff 0)bottom right,
linear-gradient(-135deg, transparent 6px, #fff 0)top right ,
linear-gradient(135deg, transparent 6px, #fff 0)top left ;
background-size: 51% 51% ;
background-repeat: no-repeat;
}