Calculation/app/public/css/toast.css

.toast{
    position: absolute;
    top: 0;
    width: 65%;
    left: 0;
    right: 0;
    margin: 0 auto;
    opacity: 0.8;
    box-shadow: 0 2px 5px 0 rgba(0, 0, 0, 0.16), 0 2px 10px 0 rgba(0, 0, 0, 0.12);
    z-index: 9999 !important;
    padding: 15px;
    border-radius: 3px;
    color: #ffffff;
    display: none;
}
.toast .message{
    padding-left: 50px;
    display: inline-block;
    font-size: 14px;
}
.toast i.icon{
    font-size: 25px;
    position: absolute;
    left: 23px;
    top: 13px;
}
.toast.success{
    background: rgba(16, 196, 105, 0.8);
    border: 2px solid #10c469
}
.toast.error{
    background-color: rgba(255, 91, 91, 0.8);
    border: 2px solid #ff5b5b;
}
.toast.warning {
    background-color: rgba(249, 200, 81, 0.8);
    border: 2px solid #f9c851;
}
.toast.info {
    background-color: rgba(53, 184, 224, 0.8);
    border: 2px solid #35b8e0;
}