I would like to change the color and the border thickness of input fields, but I can't find the way to do this. I've tried to use _extend.less but that doesn't work. It looks like styles-m.css is overriding it. So I think I have to change styles-m.css? I've tried to add a styles-m.less but I can't get it to override. Can anyone help me?
This is what a need:
.block-search input { left: -300%; margin: 15px 0; position: absolute; border: 2px solid #296db6; }