.breathe-exercise-timer-container { 
    max-width: 800px;
    box-sizing: border-box;
    padding: 2em 4em;
    width: 100%; 
    margin: 0 auto;
}

.breathe-exercise-timer-container #curve {
    stroke-width: 8;
}

.breathe-exercise-timer-container input[type=range] {
    appearance: none;
    -webkit-appearance: none;
    margin: 20px 0;
    width: 100%;
    touch-action: none;
}

.breathe-exercise-timer-container input[type=range]#section-one,
.breathe-exercise-timer-container input[type=range]#section-two {
    width: 98.2%;
    float: right;
}

.breathe-exercise-timer-container input[type=range]:focus {
    outline: none;
}

.breathe-exercise-timer-container input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    border-radius: 3px;
}

.breathe-exercise-timer-container input[type=range]::-webkit-slider-thumb {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    box-shadow: 0 0 4px 0 rgba(0,0,0, 0.1);
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -17px;
}

.breathe-exercise-timer-container .section-one input[type=range]::-webkit-slider-runnable-track,
.breathe-exercise-timer-container .section-one input[type=range]:focus::-webkit-slider-runnable-track {
    background: white;
}

.breathe-exercise-timer-container .section-two input[type=range]::-webkit-slider-runnable-track,
.breathe-exercise-timer-container .section-two input[type=range]:focus::-webkit-slider-runnable-track {
    background: slategray;
}

.breathe-exercise-timer-container .section-three input[type=range]::-webkit-slider-runnable-track,
.breathe-exercise-timer-container .section-three input[type=range]:focus::-webkit-slider-runnable-track {
    background: yellowgreen;
}

.breathe-exercise-timer-container input[type=range]::-webkit-slider-thumb {
    background: white;
}

.breathe-exercise-timer-container .range-value span {
    color: black;
}

.breathe-exercise-timer-container .range-wrap {
    width: 100%;
    position: relative;
    margin-top: 50px;
}

.breathe-exercise-timer-container .range-value {
    position: absolute;
    top: 11px;
}

.breathe-exercise-timer-container .range-wrap .timer {
    display: inline-block;
}

.breathe-exercise-timer-container .range-wrap .timer span {
    padding-left: 8px;
}

.breathe-exercise-timer-container .range-wrap .countdown {
    display: none;
    font-size: 1.6em;
}

.breathe-exercise-timer-container .range-value span {
    width: 30px;
    height: 24px;
    line-height: 24px;
    font-weight: bold;
    text-align: center;
    background: transparent;
    font-size: 12px;
    display: block;
    position: absolute;
    left: 50%;
    transform: translate(-17%, 0);
    pointer-events: none;
}

.breathe-exercise-timer-container #value-section-one span,
.breathe-exercise-timer-container #value-section-two span {
    transform: translate(17%, 0);
}

.breathe-exercise-timer-container div.buttons {
    padding: 3em 0 0 0;
    text-align: center;
}

.breathe-exercise-timer-container div.controls label {
    width: 10%;
    padding-top: 0.8em;
    display: inline-block;
    font-size: 16px;
}

.breathe-exercise-timer-container div.controls .slider {
    width: 90%;
    float: right;
    position: relative;
}

.breathe-exercise-timer-container span#start,
.breathe-exercise-timer-container span#stop {
    height: 60px;
    border-radius: 30px;
    padding: 15px 40px;
    font-size: 24px;
    display: inline;
    color: white;
    cursor: pointer;
    box-sizing: border-box;
}

.breathe-exercise-timer-container span#start { background: yellowgreen; }

.breathe-exercise-timer-container span#stop { 
    background: red;
    display: none;
}

.breathe-exercise-timer-container span#start:hover {
    background: darkgreen;
}

.breathe-exercise-timer-container span#stop:hover {
    background: darkred;
}

@media only screen and (max-width: 768px) {
    .breathe-exercise-timer-container {
        padding: 0.5em;
        max-width: none;
    }
    .breathe-exercise-timer-container div.controls label {
        width: 15%;
        padding-top: 0.6em;
    }

    .breathe-exercise-timer-container div.controls .slider {
        width: 85%;
    }
}