You need to override your css so you can change the background to black. A simple way to do this is to create a custom css class (you can ... ... <看更多>

regepan/bootstrap-button-default.css ... .btn {. font-size: 14px;. padding: 6px 12px;. margin-bottom: 0; ... outline: 5px auto -webkit-focus-ring-color;. ... <看更多>

... theme with React-Bootstrap. It just works. But we also make coloring outside the lines easy to do. ... For instance this custom Button. flat button. ... <看更多>

The easy way to generate CSS for Bootstrap 4.1 with a custom primary color. Override the boring blue color ... ... <看更多>