Here is a Work In Progress attempt to use the Sweetalert CSS with the previously posted solution. It works as is but might need some small adjustments. Also the CSS is messy and just something I have thrown together (mix of Sweetalert CSS and original CSS). If you clean it up and manage to do some other cool stuff, please share your findings. I THINK it´s possible to basically mimic the full Sweetalert alert but requires some work.
To use it, use this CSS with the previous guide.
Screenshot:

CSS:
<style>
#modalContainer {
background-color: #000;
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=40)";
background-color: rgba(0, 0, 0, .4);
position: fixed;
left: 0;
right: 0;
top: 0;
bottom: 0;
z-index: 99999;
}
#alertBox{
background-color: #fff;
font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
width: 478px;
padding: 57px;
border-radius: 5px;
text-align: center;
position: fixed;
left: 50%;
top: 40%;
overflow: hidden;
z-index: 99999;
}
@media all and (max-width: 540px){
#alertBox{
width: auto;
margin-left: 0;
margin-right: 0;
left: 15px;
right: 15px;
}
}
#alertBox h1{
color: #575757;
font-size: 30px;
text-align: center;
font-weight: 600;
text-transform: none;
position: relative;
padding: 0;
line-height: 40px;
display: block;
}
#alertBox p{
color: #797979;
font-size: 16px;
font-weight: 300;
position: relative;
text-align: inherit;
float: none;
margin: 0;
padding: 5px 0 30px 0;
line-height: normal;
}
#alertBox #closeBtn {
background-color: #AEDEF4;
color: #fff;
border: none;
box-shadow: none;
font-size: 17px;
font-weight: 500;
-webkit-border-radius: 4px;
border-radius: 5px;
padding: 10px 32px;
margin-bottom:-25px;
cursor: pointer;
}
#alertBox #closeBtn:focus{
outline: 0;
box-shadow: 0 0 2px rgba(128, 179, 235, .5), inset 0 0 0 1px rgba(0, 0, 0, .05);
}
#alertBox #closeBtn:hover{
background-color: #a1d9f2;
}
#alertBox #closeBtn:active{
background-color: #81ccee;
}
#alertBox #closeBtn.cancel{
background-color: #D0D0D0;
}
#alertBox #closeBtn.cancel:hover{
background-color: #c8c8c8;
}
#alertBox #closeBtn.cancel:active{
background-color: #b6b6b6;
}
#alertBox #closeBtn.cancel:focus{
box-shadow:rgba(197,205,211,.8-) 0 0 2px,rgba(0,0,0,.0470588-) 0 0 0 1px inset!important;
}
#alertBox #closeBtn::-moz-focus-inner{
border: 0;
}
#alertBox[data-has-cancel-#closeBtn=false] #closeBtn{
box-shadow:none!important;
}
#alertBox[data-has-confirm-#closeBtn=false][data-has-cancel-#closeBtn=false]{
padding-bottom: 40px;
}
#alertBox .sa-icon{
width: 80px;
height: 80px;
border: 4px solid gray;
-webkit-border-radius: 40px;
border-radius: 50%;
margin: 20px auto;
padding: 0;
position: relative;
box-sizing: content-box;
}
#alertBox .sa-icon.sa-error{
border-color: #F27474;
}
#alertBox .sa-icon.sa-error .sa-x-mark{
position: relative;
display: block;
}
#alertBox .sa-icon.sa-error .sa-line{
position: absolute;
height: 5px;
width: 47px;
background-color: #F27474;
display: block;
top: 3px;
border-radius: 2px;
}
#alertBox .sa-icon.sa-error .sa-line.sa-left{
-webkit-transform: rotate(45deg);
transform: rotate(45deg);
left: 17px;
}
#alertBox .sa-icon.sa-error .sa-line.sa-right{
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
right: 16px;
}
#alertBox .sa-icon.sa-warning{
border-color: #F8BB86;
}
#alertBox .sa-icon.sa-warning .sa-body{
position: absolute;
width: 5px;
height: 47px;
left: 50%;
top: 10px;
-webkit-border-radius: 2px;
border-radius: 2px;
margin-left: -2px;
background-color: #F8BB86;
}
#alertBox .sa-icon.sa-warning .sa-dot{
position: absolute;
width: 7px;
height: 7px;
-webkit-border-radius: 50%;
border-radius: 50%;
margin-left: -3px;
left: 50%;
bottom: 10px;
background-color: #F8BB86;
}
#alertBox .sa-icon.sa-info{
border-color: #C9DAE1;
}
#alertBox .sa-icon.sa-info::before{
content: "";
position: absolute;
width: 5px;
height: 29px;
left: 50%;
bottom: 17px;
border-radius: 2px;
margin-left: -2px;
background-color: #C9DAE1;
}
#alertBox .sa-icon.sa-info::after{
content: "";
position: absolute;
width: 7px;
height: 7px;
border-radius: 50%;
margin-left: -3px;
top: 19px;
background-color: #C9DAE1;
}
#alertBox .sa-icon.sa-success{
border-color: #A5DC86;
}
#alertBox .sa-icon.sa-success::after,#alertBox .sa-icon.sa-success::before{
content: '';
position: absolute;
width: 60px;
height: 120px;
background: #fff;
-webkit-transform: rotate(45deg);
transform: rotate(45deg);
}
#alertBox .sa-icon.sa-success::before{
-webkit-border-radius: 120px 0 0 120px;
border-radius: 120px 0 0 120px;
top: -7px;
left: -33px;
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
-webkit-transform-origin: 60px 60px;
transform-origin: 60px 60px;
}
#alertBox .sa-icon.sa-success::after{
-webkit-border-radius: 0 120px 120px 0;
border-radius: 0 120px 120px 0;
top: -11px;
left: 30px;
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
-webkit-transform-origin: 0 60px;
transform-origin: 0 60px;
}
#alertBox .sa-icon.sa-success .sa-placeholder{
width: 80px;
height: 80px;
border: 4px solid rgba(165, 220, 134, .2);
-webkit-border-radius: 40px;
border-radius: 50%;
box-sizing: content-box;
position: absolute;
left: -4px;
top: -4px;
z-index: 2;
}
#alertBox .sa-icon.sa-success .sa-fix{
width: 5px;
height: 90px;
background-color: #fff;
position: absolute;
left: 28px;
top: 8px;
z-index: 1;
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
}
#alertBox .sa-icon.sa-success .sa-line{
height: 5px;
background-color: #A5DC86;
display: block;
border-radius: 2px;
position: absolute;
z-index: 2;
}
#alertBox .sa-icon.sa-success .sa-line.sa-tip{
width: 25px;
left: 14px;
top: 46px;
-webkit-transform: rotate(45deg);
transform: rotate(45deg);
}
#alertBox .sa-icon.sa-success .sa-line.sa-long{
width: 47px;
right: 8px;
top: 38px;
-webkit-transform: rotate(-45deg);
transform: rotate(-45deg);
}
#alertBox .sa-icon.sa-custom{
background-size: contain;
border-radius: 0;
border: none;
background-position: center center;
background-repeat: no-repeat;
}
@-webkit-keyframes showSweetAlert{
0%{
transform: scale(.7);
-webkit-transform: scale(.7);
}
45%{
transform: scale(1.05);
-webkit-transform: scale(1.05);
}
80%{
transform: scale(.95);
-webkit-tranform: scale(.95);
}
100%{
transform: scale(1);
-webkit-transform: scale(1);
}
}
@keyframes showSweetAlert{
0%{
transform: scale(.7);
-webkit-transform: scale(.7);
}
45%{
transform: scale(1.05);
-webkit-transform: scale(1.05);
}
80%{
transform: scale(.95);
-webkit-tranform: scale(.95);
}
100%{
transform: scale(1);
-webkit-transform: scale(1);
}
}
@-webkit-keyframes hideSweetAlert{
0%{
transform: scale(1);
-webkit-transform: scale(1);
}
100%{
transform: scale(.5);
-webkit-transform: scale(.5);
}
}
@keyframes hideSweetAlert{
0%{
transform: scale(1);
-webkit-transform: scale(1);
}
100%{
transform: scale(.5);
-webkit-transform: scale(.5);
}
}
.showSweetAlert{
-webkit-animation: showSweetAlert .3s;
animation: showSweetAlert .3s;
}
.showSweetAlert[data-animation=none]{
-webkit-animation: none;
animation: none;
}
.hideSweetAlert{
-webkit-animation: hideSweetAlert .2s;
animation: hideSweetAlert .2s;
}
.hideSweetAlert[data-animation=none]{
-webkit-animation: none;
animation: none;
}
@-webkit-keyframes animateSuccessTip{
0%, 54%{
width: 0;
left: 1px;
top: 19px;
}
70%{
width: 50px;
left: -8px;
top: 37px;
}
84%{
width: 17px;
left: 21px;
top: 48px;
}
100%{
width: 25px;
left: 14px;
top: 45px;
}
}
@keyframes animateSuccessTip{
0%, 54%{
width: 0;
left: 1px;
top: 19px;
}
70%{
width: 50px;
left: -8px;
top: 37px;
}
84%{
width: 17px;
left: 21px;
top: 48px;
}
100%{
width: 25px;
left: 14px;
top: 45px;
}
}
@-webkit-keyframes animateSuccessLong{
0%, 65%{
width: 0;
right: 46px;
top: 54px;
}
84%{
width: 55px;
right: 0;
top: 35px;
}
100%{
width: 47px;
right: 8px;
top: 38px;
}
}
@keyframes animateSuccessLong{
0%, 65%{
width: 0;
right: 46px;
top: 54px;
}
84%{
width: 55px;
right: 0;
top: 35px;
}
100%{
width: 47px;
right: 8px;
top: 38px;
}
}
@-webkit-keyframes rotatePlaceholder{
0%, 5%{
transform: rotate(-45deg);
-webkit-transform: rotate(-45deg);
}
100%, 12%{
transform: rotate(-405deg);
-webkit-transform: rotate(-405deg);
}
}
@keyframes rotatePlaceholder{
0%, 5%{
transform: rotate(-45deg);
-webkit-transform: rotate(-45deg);
}
100%, 12%{
transform: rotate(-405deg);
-webkit-transform: rotate(-405deg);
}
}
.animateSuccessTip{
-webkit-animation: animateSuccessTip .75s;
animation: animateSuccessTip .75s;
}
.animateSuccessLong{
-webkit-animation: animateSuccessLong .75s;
animation: animateSuccessLong .75s;
}
.sa-icon.sa-success.animate::after{
-webkit-animation: rotatePlaceholder 4.25s ease-in;
animation: rotatePlaceholder 4.25s ease-in;
}
@-webkit-keyframes animateErrorIcon{
0%{
transform: rotateX(100deg);
-webkit-transform: rotateX(100deg);
opacity: 0;
}
100%{
transform: rotateX(0deg);
-webkit-transform: rotateX(0deg);
opacity: 1;
}
}
@keyframes animateErrorIcon{
0%{
transform: rotateX(100deg);
-webkit-transform: rotateX(100deg);
opacity: 0;
}
100%{
transform: rotateX(0deg);
-webkit-transform: rotateX(0deg);
opacity: 1;
}
}
.animateErrorIcon{
-webkit-animation: animateErrorIcon .5s;
animation: animateErrorIcon .5s;
}
@-webkit-keyframes animateXMark{
0%, 50%{
transform: scale(.4);
-webkit-transform: scale(.4);
margin-top: 26px;
opacity: 0;
}
80%{
transform: scale(1.15);
-webkit-transform: scale(1.15);
margin-top: -6px;
}
100%{
transform: scale(1);
-webkit-transform: scale(1);
margin-top: 0;
opacity: 1;
}
}
@keyframes animateXMark{
0%, 50%{
transform: scale(.4);
-webkit-transform: scale(.4);
margin-top: 26px;
opacity: 0;
}
80%{
transform: scale(1.15);
-webkit-transform: scale(1.15);
margin-top: -6px;
}
100%{
transform: scale(1);
-webkit-transform: scale(1);
margin-top: 0;
opacity: 1;
}
}
.animateXMark{
-webkit-animation: animateXMark .5s;
animation: animateXMark .5s;
}
@-webkit-keyframes pulseWarning{
0%{
border-color: #F8D486;
}
100%{
border-color: #F8BB86;
}
}
@keyframes pulseWarning{
0%{
border-color: #F8D486;
}
100%{
border-color: #F8BB86;
}
}
.pulseWarning{
-webkit-animation: pulseWarning .75s infinite alternate;
animation: pulseWarning .75s infinite alternate;
}
@-webkit-keyframes pulseWarningIns{
0%{
background-color: #F8D486;
}
100%{
background-color: #F8BB86;
}
}
@keyframes pulseWarningIns{
0%{
background-color: #F8D486;
}
100%{
background-color: #F8BB86;
}
}
.pulseWarningIns{
-webkit-animation: pulseWarningIns .75s infinite alternate;
animation: pulseWarningIns .75s infinite alternate;
}
#modalContainer > #alertBox {
position:fixed;
}
</style>