diff --git a/.local/static/2019/10/2/1574738229230.1574738229286.png b/.local/static/2019/10/2/1574738229230.1574738229286.png
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diff --git a/css绘制三角形.md b/css绘制三角形.md
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--- a/css绘制三角形.md
+++ b/css绘制三角形.md
@@ -3,3 +3,20 @@
 ## 实现原理 ##
 确定底部将其他边框设置为透明 最后一个确定颜色
 ## 实现过程 ##
+![title](.local/static/2019/10/2/1574738229230.1574738229286.png)
+css代码
+```
+ .box{
+            width: 10px;
+            height: 10px;
+            border-top: red solid 10px;
+            border-bottom: blue solid 10px;
+            border-left: yellow solid 10px;
+            border-right: green solid 10px;
+        }
+```
+html
+```
+<div class="box"></div>
+```
+这样就