test

This is a Testing post

Subtitle

This is a testing post

$f = \color{red}{f(x)} \color{black}= x$

This is just some math

$$\color{blue}\int_0^1 \color{red}x^2 \, \color{black}dx = \color{green}\frac{1}{3}$$

Proof

This is a proof

This is a test on how to insert images

This is a test to see the poem

锦瑟

李商隐

锦瑟无端五十弦，一弦一柱思华年。
庄生晓梦迷蝴蝶，望帝春心托杜鹃。

沧海月明珠有泪，蓝田日暖玉生烟。
此情可待成追忆，只是当时已惘然。

This is a test on how to add a video