spee.ch/public/vendors/MDB/sass/mdb/free/_waves.scss

/*!
 * Waves v0.7.5
 * http://fian.my.id/Waves 
 * 
 * Copyright 2014-2016 Alfiana E. Sibuea and other contributors 
 * Released under the MIT license 
 * https://github.com/fians/Waves/blob/master/LICENSE 
 */

@mixin waves-transition($transition){
    -webkit-transition: $transition;
    -moz-transition: $transition; 
    -o-transition: $transition;
    transition: $transition;  
}

@mixin waves-transform($string){
    -webkit-transform: $string;
    -moz-transform: $string;
    -ms-transform: $string;
    -o-transform: $string;
    transform: $string;
}

@mixin waves-box-shadow($shadow){
    -webkit-box-shadow: $shadow;
    box-shadow: $shadow;
}

.waves-effect {
    position: relative; 
    cursor: pointer;
    overflow: hidden;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    z-index: 1;
    
    .waves-ripple {
        position: absolute;
        border-radius: 50%;
        width: 100px;
        height: 100px;
        margin-top:-50px;
        margin-left:-50px;
        opacity: 0;
        background: rgba(0,0,0,0.2);
        $gradient: rgba(0,0,0,0.2) 0,rgba(0,0,0,.3) 40%,rgba(0,0,0,.4) 50%,rgba(0,0,0,.5) 60%,rgba(255,255,255,0) 70%;
        background: -webkit-radial-gradient($gradient);
        background: -o-radial-gradient($gradient);
        background: -moz-radial-gradient($gradient); 
        background: radial-gradient($gradient);
        @include waves-transition(all 0.5s ease-out);
        -webkit-transition-property: -webkit-transform, opacity;
        -moz-transition-property: -moz-transform, opacity;
        -o-transition-property: -o-transform, opacity;
        transition-property: transform, opacity;
        @include waves-transform(scale(0) translate(0,0));
        pointer-events: none;
    }

    &.waves-light .waves-ripple {
        background: rgba(255,255,255,0.4);
        $gradient: rgba(255,255,255,0.2) 0,rgba(255,255,255,.3) 40%,rgba(255,255,255,.4) 50%,rgba(255,255,255,.5) 60%,rgba(255,255,255,0) 70%;
        background: -webkit-radial-gradient($gradient);
        background: -o-radial-gradient($gradient);
        background: -moz-radial-gradient($gradient);
        background: radial-gradient($gradient);
    }
    
    &.waves-classic .waves-ripple {
        background: rgba(0,0,0,0.2);
    }
    
    &.waves-classic.waves-light .waves-ripple {
        background: rgba(255,255,255,0.4);
    }
}

.waves-notransition {
    @include waves-transition(none #{"!important"});
}

.waves-button, 
.waves-circle {
    @include waves-transform(translateZ(0));
    -webkit-mask-image: -webkit-radial-gradient(circle, white 100%, black 100%);
}

.waves-button,
.waves-button:hover,
.waves-button:visited,
.waves-button-input {
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    border: none;
    outline: none;
    color: inherit;
    background-color: rgba(0, 0, 0, 0);
    font-size: 1em;
    line-height:1em;
    text-align: center;
    text-decoration: none;
    z-index: 1;
}

.waves-button {
    padding: 0.85em 1.1em;
    border-radius: 0.2em;
}

.waves-button-input {
    margin: 0;
    padding: 0.85em 1.1em;
}

.waves-input-wrapper {
    border-radius: 0.2em;
    vertical-align: bottom;

    &.waves-button {
        padding: 0;
    }

    .waves-button-input {
        position: relative;
        top: 0;
        left: 0;
        z-index: 1;
    }
}

.waves-circle {
    text-align: center;
    width: 2.5em;
    height: 2.5em;
    line-height: 2.5em;
    border-radius: 50%;
}

.waves-float {
    -webkit-mask-image: none;
    @include waves-box-shadow(0px 1px 1.5px 1px rgba(0, 0, 0, 0.12));
    @include waves-transition(all 300ms);

    &:active {
        @include waves-box-shadow(0px 8px 20px 1px rgba(0, 0, 0, 0.30));
    }
}

.waves-block {
    display: block;
}