[Bootstrap 3] 變更modal overlay的背景色方法

本文記錄一下如何修改bootstrap modal overlay的背景色

http://stackoverflow.com/questions/10585689/change-the-background-color-in-a-twitter-bootstrap-modal

To change the color via:

CSS

Put these styles in your stylesheet after the bootstrap styles:

.modal-backdrop {
   background-color: red;
}

Less

Changes the bootstrap-variables to:

@modal-backdrop-bg:           red;

Source

Sass

Changes the bootstrap-variables to:

$modal-backdrop-bg:           red;