/*call button*/
@keyframes scale-1 {
    from {transform: scale(1);}
    to {transform: scale(1.33);}
}

@keyframes scale-2 {
    from {transform: scale(1);}
    to {transform: scale(1.75);}
}

.call-me, .call-me:active, .call-me:visited, .call-me:hover {
	position: fixed;
    right: 0.5em;
    bottom: 0.5em;
    font-size: 3em;
    line-height: 1;
    width: 1.5em;
    height: 1.5em;
    line-height: 1.5em;
    text-align: center;
    margin: 0;
    padding: 0;
    background-color: #c90d00;
    color: #fff;
    border-radius: 50%;
    border: 0 solid #fff;
    transition: border 0.2s, width 0.2s, height 0.2s;
    z-index: 1;
}

.call-me::before {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 1em;
    height: 1em;
    border-radius: 50%;
	border: 0.25em solid #c90d00;
	opacity: .25;
    animation: scale-1 1s ease-in 1s infinite alternate;
}

.call-me::after {
    content: '';
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    width: 1.5em;
    height: 1.5em;
    border-radius: 50%;
    border: 1px solid #c90d00;
	opacity: .5;
	box-sizing: border-box;
    animation: scale-1 2s ease infinite alternate;
}