Need help justifying text

need help justifying body texts and words in text boxes. i'm using the pacific theme and the customised css codes i've tried doesn't seem to work. here are the codes i've tried: 

<style>
body p, .sqs-layout .sqs-block.html-block p {
 text-align: justify !important;
}
</style>

.element-to-justify {
 text-align: justify;
}

body { text-align: justify }

body p,
.sqs-layout .sqs-block.html-block p,
.sqs-layout .sqs-block.markdown-block p {
 text-align: justify;
}

p {
  text-align: justify !important;
}

p:last-child {
   text-align: justify;
}

.main-content article p {
   text-align: justify;
   text-justify: inter-word;
}

I would advise against justifying web text.

It's a big usability problem. It makes copy very difficult to read particularly, but not only,  for dyslexic readers.