.mo-switch {
    position: relative;
    display: inline-block;
    width: 80px;
    height: 36px;
}

.mo-switch input {display:none;}

.mo-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: grey;
    -webkit-transition: .4s;
    transition: .4s;
}

.mo-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .mo-slider {
    background-color: grey;
}

input:focus + .mo-slider {
    box-shadow: 0 0 1px #2196F3;
}

input:checked + .mo-slider:before {
    -webkit-transform: translateX(46px);
    -ms-transform: translateX(46px);
    transform: translateX(46px);
}

/*------ ADDED CSS ---------*/
.on
{
    display: none;
}

.on, .off
{
    color: white;
    position: absolute;
    transform: translate(-50%,-50%);
    top: 50%;
    left: 50%;
    font-weight: bold;
    font-size: 12px;
    font-family: Verdana, sans-serif;
}

input:checked+ .mo-slider .on
{display: block;}

input:checked + .mo-slider .off
{display: none;}

/*--------- END --------*/

/* Rounded mo-sliders */
.mo-slider.round {
    border-radius: 34px;
}

.mo-slider.round:before {
    border-radius: 50%;}

/*
.mo-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

!* Hide default HTML checkbox *!
.mo-switch input {
    display: none;
}

!* The mo-slider *!
.mo-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    -webkit-transition: .4s;
    transition: .4s;
}

.mo-slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    -webkit-transition: .4s;
    transition: .4s;
}

input:checked + .mo-slider {
    background-color: #2196F3;
}

input:focus + .mo-slider {
    box-shadow: 0 0 1px #2196F3;
}

input:checked + .mo-slider:before {
    -webkit-transform: translateX(26px);
    -ms-transform: translateX(26px);
    transform: translateX(26px);
}

!* Rounded mo-sliders *!
.mo-slider.round {
    border-radius: 34px;
}

.mo-slider.round:before {
    border-radius: 50%;
}
*/