How to right align fixed position div inside a div

Question

My code is like this.

    
some text here
    

CSS:

Answer 1

A bit hacky, but it works

.outer {
    width:200px;
    height:600px;
    background-color:red;
    margin:0 auto;
    direction: rtl; 
}
.inner {
    width:50px;
    border:1px solid white;
    direction: ltr;
}