Image size customizing

I have images of various sizes from external source and I want them fit to height 100 or width 100 and keep their proportinal size... so I can not use
height=100 widht=100 as attributes... so right now I am changing only width but when comes picture wide 20 and high 100 than it change widht to 100 and hight to 500 and in this case I need to keep height 100.

Is there some simple CSS or something else I could use?

 

If you are willing to pay for this, I will be able to do it for you.

Best Regards.
RolandImagine.

 

If you are willing to pay for this, I will be able to do it for you.

Best Regards.
RolandImagine.

 

if only modifying html attribute, then use max-width:100px; and max-height:100px; in the css

so
#id img{
max-width:100px;
max-height:100px;
}

will do that

 

This is NOT the market forum . Go post your sloppy offers over there .

That would be the way to go . Or just simple width and height attributes .

 

That is what I was looking for... going to test it... I knew there must be simple way to do it.

 

knowledge is free here. if you post something like this, you're not helping this forum