exchange-2.0/resources/assets/sass/modules/_alerts.scss

/*------------------------------------------------------------------
[7. Alerts]
*/
.alert {
    background-image: none;
    box-shadow: none;
    text-shadow: none;
    padding: 9px 19px 9px 15px;
    border-radius: 3px;
    font-size: 13px;
    border-width:0;
    @include transition(all 0.2s linear 0s);
    &.bordered{
        border-width: 1px;
    }
    .link {
        color: #ce8f22;
        font-weight: bold;
    }
    .alert-heading {
        color: #ce8f22 !important;
        margin-bottom: 5px;
        font-weight: 600;
    }
    .btn-small {
        position: relative;
        top: -3.5px;
    }
    .button-set {
        .btn {
            position: relative;
            top: 8px;
        }
    }
    .close {
        background: url("#{$base-img-url}/icons/noti-cross.png") no-repeat scroll 0 0 transparent;
        background-position: -9px -10px;
        width: 10px;
        height: 9px;
        position: relative;
        opacity: 0.8;
        top: 4.5px;
        margin-left: 20px;
        font-size: 0;
        &:hover {
            opacity: 1;
        }
    }
    
}

/* Alert : Color Options
------------------------------------
*/
.alert-danger, 
.alert-error{
    background-color: $color-danger-lighter;
    color: $color-danger-darker;
    border-color: $color-danger-darker;
    .close {
        background-position: -95px -10px !important;
    }
}
.alert-warning{
    background-color: $color-warning-lighter;
    color: $color-warning-darker;
    border-color: $color-warning-darker;
}
.alert-info{
    background-color: $color-complete-lighter;
    color: $color-complete-darker;
    border-color: $color-complete-darker;
    .close {
        background-position: -67px -10px !important;
    }
}
.alert-success{
    background-color: $color-success-lighter;
    color: $color-success-darker;
    border-color: $color-success-darker;
     .close {
        background-position: -38px -10px !important;
    }
}
.alert-default{
    background-color: #fff;
    color: $color-master;
    border-color: $color-master-light;
     .close {
        background-position: -67px -10px !important;
    }
}