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ブートストラップボタンの色は、このように変数で定義されます。

@btnPrimaryBackground:              @linkColor;
@btnPrimaryBackgroundHighlight:     spin(@btnPrimaryBackground, 20%);

@btnInfoBackground:                 #5bc0de;
@btnInfoBackgroundHighlight:        #2f96b4;

@btnSuccessBackground:              #62c462;
@btnSuccessBackgroundHighlight:     #51a351;

@btnWarningBackground:              lighten(@orange, 15%);
@btnWarningBackgroundHighlight:     @orange;

@btnDangerBackground:               #ee5f5b;
@btnDangerBackgroundHighlight:      #bd362f;

@btnInverseBackground:              #444;
@btnInverseBackgroundHighlight:     @grayDarker;

backgroundHighlightとbackgroundHighlightの16進コードにいくつかのロジックがありますか（つまり、16進コード間の特定の色の違い）、または「見栄えが良い」という誰かのデザインの観点に基づいて任意に設定されていますか？

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2 に答える 2

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特別に設計されたものであることがわかります。ただし、5％または10％の値を持つlighten（）またはdarken（）ミックスインを使用して、ハイライトを設定できます。しかし、同じ方法でボタン全体を1つの色から作成できます:)

于 2012-12-16T21:43:58.460 に答える
1

Bootstrapのソースから関連するLESSコードを取得して、btn-purpleクラスを生成しました。グラデーションなどは、デフォルトのボタンと非常によく似ています。色を変更するには、以下のLESSコードで変更する必要があり@backgroundColorます。@backgroundColorHighlight

// Gradient Bar Colors for buttons and alerts
.gradientBar(@primaryColor, @secondaryColor, @textColor: #fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
    color: @textColor;
    text-shadow: @textShadow;
    #gradient > .vertical(@primaryColor, @secondaryColor);
    border-color: @secondaryColor @secondaryColor darken(@secondaryColor, 15%);
    border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) fadein(rgba(0,0,0,.1), 15%);
}

// Gradients
#gradient {
    .horizontal(@startColor: #555, @endColor: #333) {
        background-color: @endColor;
        background-image: -moz-linear-gradient(left, @startColor, @endColor); // FF 3.6+
        background-image: -webkit-gradient(linear, 0 0, 100% 0, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
        background-image: -webkit-linear-gradient(left, @startColor, @endColor); // Safari 5.1+, Chrome 10+
        background-image: -o-linear-gradient(left, @startColor, @endColor); // Opera 11.10
        background-image: linear-gradient(to right, @startColor, @endColor); // Standard, IE10
        background-repeat: repeat-x;
        filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=1)",argb(@startColor),argb(@endColor))); // IE9 and down
    }
    .vertical(@startColor: #555, @endColor: #333) {
        background-color: mix(@startColor, @endColor, 60%);
        background-image: -moz-linear-gradient(top, @startColor, @endColor); // FF 3.6+
        background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), to(@endColor)); // Safari 4+, Chrome 2+
        background-image: -webkit-linear-gradient(top, @startColor, @endColor); // Safari 5.1+, Chrome 10+
        background-image: -o-linear-gradient(top, @startColor, @endColor); // Opera 11.10
        background-image: linear-gradient(to bottom, @startColor, @endColor); // Standard, IE10
        background-repeat: repeat-x;
        filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down
    }
    .directional(@startColor: #555, @endColor: #333, @deg: 45deg) {
        background-color: @endColor;
        background-repeat: repeat-x;
        background-image: -moz-linear-gradient(@deg, @startColor, @endColor); // FF 3.6+
        background-image: -webkit-linear-gradient(@deg, @startColor, @endColor); // Safari 5.1+, Chrome 10+
        background-image: -o-linear-gradient(@deg, @startColor, @endColor); // Opera 11.10
        background-image: linear-gradient(@deg, @startColor, @endColor); // Standard, IE10
    }
    .horizontal-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
        background-color: mix(@midColor, @endColor, 80%);
        background-image: -webkit-gradient(left, linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
        background-image: -webkit-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
        background-image: -moz-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
        background-image: -o-linear-gradient(left, @startColor, @midColor @colorStop, @endColor);
        background-image: linear-gradient(to right, @startColor, @midColor @colorStop, @endColor);
        background-repeat: no-repeat;
        filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
    }

    .vertical-three-colors(@startColor: #00b3ee, @midColor: #7a43b6, @colorStop: 50%, @endColor: #c3325f) {
        background-color: mix(@midColor, @endColor, 80%);
        background-image: -webkit-gradient(linear, 0 0, 0 100%, from(@startColor), color-stop(@colorStop, @midColor), to(@endColor));
        background-image: -webkit-linear-gradient(@startColor, @midColor @colorStop, @endColor);
        background-image: -moz-linear-gradient(top, @startColor, @midColor @colorStop, @endColor);
        background-image: -o-linear-gradient(@startColor, @midColor @colorStop, @endColor);
        background-image: linear-gradient(@startColor, @midColor @colorStop, @endColor);
        background-repeat: no-repeat;
        filter: e(%("progid:DXImageTransform.Microsoft.gradient(startColorstr='%d', endColorstr='%d', GradientType=0)",argb(@startColor),argb(@endColor))); // IE9 and down, gets no color-stop at all for proper fallback
    }
    .radial(@innerColor: #555, @outerColor: #333) {
        background-color: @outerColor;
        background-image: -webkit-gradient(radial, center center, 0, center center, 460, from(@innerColor), to(@outerColor));
        background-image: -webkit-radial-gradient(circle, @innerColor, @outerColor);
        background-image: -moz-radial-gradient(circle, @innerColor, @outerColor);
        background-image: -o-radial-gradient(circle, @innerColor, @outerColor);
        background-repeat: no-repeat;
    }
    .striped(@color: #555, @angle: 45deg) {
        background-color: @color;
        background-image: -webkit-gradient(linear, 0 100%, 100% 0, color-stop(.25, rgba(255,255,255,.15)), color-stop(.25, transparent), color-stop(.5, transparent), color-stop(.5, rgba(255,255,255,.15)), color-stop(.75, rgba(255,255,255,.15)), color-stop(.75, transparent), to(transparent));
        background-image: -webkit-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
        background-image: -moz-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
        background-image: -o-linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
        background-image: linear-gradient(@angle, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%, transparent);
    }
}
// Reset filters for IE
.reset-filter() {
    filter: e(%("progid:DXImageTransform.Microsoft.gradient(enabled = false)"));
}

.buttonBackground(@startColor, @endColor, @textColor: #fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
    // gradientBar will set the background to a pleasing blend of these, to support IE<=9
    .gradientBar(@startColor, @endColor, @textColor, @textShadow);
    *background-color: @endColor; /* Darken IE7 buttons by default so they stand out more given they won't have borders */
    .reset-filter();

      // in these cases the gradient won't cover the background, so we override
    &:hover, &:focus, &:active, &.active, &.disabled, &[disabled] {
        color: @textColor;
        background-color: @endColor;
        *background-color: darken(@endColor, 5%);
        background-position: 0 -15px;
    }

    // IE 7 + 8 can't handle box-shadow to show active, so we darken a bit ourselves
    &:active,
    &.active {
        background-color: darken(@endColor, 10%) e("\9");
    }
}

// Provide *some* extra contrast for those who can get it
.btn-purple.active {
    color: rgba(255,255,255,.75);
}

// Set the backgrounds
// -------------------------
@backgroundColor: lighten(#7a43b6, 10%);
@backgroundColorHighlight: darken(#7a43b6, 5%);
.btn-purple {
    .buttonBackground(@backgroundColor, @backgroundColorHighlight);
}
于 2013-05-26T23:44:01.747 に答える