flaskdashboard/app/base/static/assets/scss/black-dashboard/custom/_buttons.scss

.btn,
.navbar .navbar-nav > a.btn{
    border-width: $border-thick;
    border: none;
    position: relative;
    overflow: hidden;
    margin:4px 1px;
    border-radius: $border-radius-lg;
    cursor: pointer;

    @include btn-styles($default, $default-states);

    &:hover,
    &:focus{
        @include opacity(1);
        outline: 0 !important;
    }
    &:active,
    &.active,
    .open > &.dropdown-toggle {
         @include box-shadow(none);
         outline: 0 !important;
    }

    .badge{
      margin: 0;
    }

    &.btn-icon {
        // see above for color variations
        height: $icon-size-regular;
        min-width: $icon-size-regular;
        width: $icon-size-regular;
        padding: 0;
        font-size: $icon-font-size-regular;
        overflow: hidden;
        position: relative;
        line-height: normal;

        &.btn-simple{
            padding: 0;
        }

        &.btn-sm{
            height: $icon-size-sm;
            min-width: $icon-size-sm;
            width: $icon-size-sm;

            .fa,
            .far,
            .fas,
            .tim-icons{
                font-size: $icon-font-size-sm;
            }
        }

        &.btn-lg{
            height: $icon-size-lg;
            min-width: $icon-size-lg;
            width: $icon-size-lg;

            .fa,
            .far,
            .fas,
            .tim-icons{
                font-size: $icon-font-size-lg;
            }
        }

        &:not(.btn-footer) .tim-icons,
        &:not(.btn-footer) .fa,
        &:not(.btn-footer) .far,
        &:not(.btn-footer) .fas{
            position: absolute;
            font-size: 1em;
            top: 50%;
            left: 50%;
            transform: translate(-12px, -12px);
            line-height: 1.5626rem;
            width: 24px;
        }

    }

    &:not(.btn-icon) .tim-icons{
        position: relative;
        top: 1px;
    }

    span{
      position: relative;
      display: block;
    }

  &.btn-link.dropdown-toggle {
    color: $dark-gray;
  }

  &.dropdown-toggle:after {
    margin-left: 30px !important;
  }
}

// Apply the mixin to the buttons
// .btn-default { @include btn-styles($default-color, $default-states-color); }
.btn-primary { @include btn-styles($primary, $primary-states);

              }
.btn-success { @include btn-styles($success, $success-states);

              }
.btn-info    { @include btn-styles($info, $info-states);

              }
.btn-warning { @include btn-styles($warning, $warning-states);
                &:not(:disabled):not(.disabled):active{
                  color: $white;
                }
              }
.btn-danger  { @include btn-styles($danger, $danger-states);

              }
.btn-neutral { @include btn-styles($white, $white); }

.btn{
     &:disabled,
     &[disabled],
     &.disabled{
        @include opacity(.5);
        pointer-events: none;
    }
}
.btn-simple{
    border: $border;
    border-color: $default;
    box-shadow: none;
    padding: $padding-btn-vertical - 1 $padding-round-horizontal - 1;
    background-color: $transparent-bg;
}

.btn-simple,
.btn-link{
    &.disabled,
    &:disabled,
    &[disabled],
    fieldset[disabled] & {
        &,
        &:hover,
        &:focus,
        &.focus,
        &:active,
        &.active {
            background: $transparent-bg;
        }
    }
}

.btn:not(:disabled):not(.disabled):active, .btn:not(:disabled):not(.disabled).active{
  box-shadow: 2px 2px 6px rgba(0,0,0,.4);
}
.btn-link{
    border: $none;
    box-shadow: none;
    padding: $padding-base-vertical $padding-base-horizontal;
    background: $transparent-bg;
    color: $gray-300;
    font-weight: $font-weight-bold;

  &:hover {
    box-shadow: none !important;
    transform: none !important;
  }
}

.btn-lg{
   @include btn-size($btn-padding-y-lg, $btn-padding-x-lg, $font-size-base, $border-radius-lg);
}
.btn-sm{
    @include btn-size($btn-padding-y-sm, $btn-padding-x-sm, $font-size-base, $border-radius-sm);
}

.btn-wd {
    min-width: 140px;
}
.btn-group.select{
    width: 100%;
}

.btn-group {
  .btn.active {
    box-shadow: 2px 2px 6px rgba(0,0,0,.4);
    transform: translateY(-1px);
    -webkit-transform: translateY(-1px);
  }
}


.btn-group.select .btn{
    text-align: left;
}
.btn-group.select .caret{
    position: absolute;
    top: 50%;
    margin-top: -1px;
    right: 8px;
}

.btn-group .btn.active {
    box-shadow: 2px 2px 6px rgba(0,0,0,.4);
    transform: translateY(-1px);
    -webkit-transform: translateY(-1px);
}

.btn-round{
    border-width: $border-thin;
    border-radius: $btn-round-radius;

    &.btn-simple{
        padding: $padding-btn-vertical - 1  $padding-round-horizontal - 1;
    }
}

.no-caret {
  &.dropdown-toggle::after {
    display: none;
  }
}

.btn-secondary:not(:disabled):not(.disabled):active,
.btn-secondary:not(:disabled):not(.disabled).active,
.show > .btn-secondary.dropdown-toggle {
    color: $white;
}

.btn-group label.btn.active {
    transform: translateY(0);
    -webkit-transform: translateY(0);
}