How to use CSS to achieve a small triangle effect_html/css

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Jun 24, 2016 am 11:41 AM

How to use CSS to achieve the small triangle effect:
Among many web page effects, there are applications of the small triangle effect, which can increase the aesthetics of a specific application, as follows Just give a piece of example code, which introduces two ways to achieve the effect of a small triangle head. The code is as follows:

<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><meta name="author" content="http://www.51texiao.cn/" /><title>三种纯CSS实现三角形的方法</title><style type="text/css">.message-box {  position:relative;  float:left;  margin:80px 0 0 100px;  width:240px;  height:60px;  line-height:60px;  border:1px solid #000;  text-align:center;  color:#0C7823;}.triangle-border {  position:absolute;  left:100px;  overflow:hidden;  width:0;  height:0;  border-width:10px;  border-style:none dashed solid dashed;}.tb-border {  top:-10px;  border-color:#000 transparent #000 transparent;}.tb-background {  top:-9px;  border-color:transparent transparent #fff transparent;}/*字符*/.triangle-character {  position:absolute;  left:100px;  overflow:hidden;  width:26px;  height:26px;  font:normal 26px "宋体";}.tc-background {  top:-12px;  color:#FFF;}.tc-border {  top:-13px;  color:#000;}</style></head><body><div class="message-box"> <span> border 属性实现</span>  <div class="triangle-border tb-border"></div>  <div class="triangle-border tb-background"></div></div><div class="message-box"> <span> ◆ 字符实现</span>  <div class="triangle-character tc-border">◆</div>  <div class="triangle-character tc-background">◆</div></div></body></html>

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