bootstrap cdn is not working code example
Example: css vertical-align not working
<div class="outer">
<div class="inner"/>
</div>
.outer {
display : flex;
align-items : center;
justify-content: center;
}
<div class="outer">
<div class="inner"/>
</div>
.outer {
display : flex;
align-items : center;
justify-content: center;
}