How to justify the text to both sides when knitting html in rmarkdown

Question

---
title: '1'
author: "A"
date: "April 4, 2017"
output: html_document
---

      Figure 3 includes the residual plot and QQ-plot. The residual plot have no obvious pattern: the expect value of residuals is close to 0 and the variances are approximately equal. The QQ-plot shows the standardized residuals are close to the theoretical quantiles. Thus, **the residuals are normally distributed and homoscedastic, and the assumption of the liner model is satisfied**. The VIF values for each variable in the best model is small, indicating **there are no obvious multicolinearity**.

Use the above code for example, as it shows in the picture, the second line and third line are aligned to the left by default.

What should I do if I want to align to both sides? (Notice: not align to the center!)

Text Justification in Rmarkdown word document gives the solution for word output case, but I haven't found a good reference for html case.

Answer 1

Just overwrite the alignment right after the YAML:

---
title: '1'
author: "A"
date: "April 4, 2017"
output: html_document
---

<style>
body {
text-align: justify}
</style>

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Figure 3 includes the residual plot and QQ-plot. The residual plot have no obvious pattern: the expect value of residuals is close to 0 and the variances are approximately equal. The QQ-plot shows the standardized residuals are close to the theoretical quantiles. Thus, **the residuals are normally distributed and homoscedastic, and the assumption of the liner model is satisfied**. The VIF values for each variable in the best model is small, indicating **there are no obvious multicolinearity**.

Credits to Guilherme Parreira, here