Why is the block not centered?

Question

css

Why is the block not centered?

<div class="container">
<div class="block1"><img src="images/1234 Custom.png" width="250"; height="350"; alt=""></div>
<div class="block1"><span>Деревянно-алюминиевые окна
Цена от 83 600 руб за м2.</span></div>
</div>

.container {
width: 270px;
text-align: center;
}

.block1 {
  width: 250px;
  text-align: center;
}

I want to center this block:

Answer 1

.container {
width: 270px;
text-align: center;
margin: 0 auto;
}

Answer 2

Everything you wrote in the comments above is correct.
`text-align: center;` - usually used for text.