Countdown Break Timer

<a countdown="" class="std-btn <div id="stopBreak"class="std-btn countdown="30" border:0;" std-left" Minutes</a> btn" class="row"> id="countdown-slider" min="1" <div <div class="countdown"></div> onclick="setCountdown(30);">30 waves-light Minutes</a> countdown="60" onclick="startBreak()">Start btn" <a onclick="setCountdown(60);">60 waves-effect waves-light waves-light std-center class="std-btn btn" Minutes</a> Break countdown="5" class="std-btn white-space: onclick="setCountdown(10);">10 </div> Minutes</a> waves-light </div> onclick="setCountdown(20);">20 <a <a std-center waves-light btn" disabled" style="width:160px; class="std-btn waves-effect waves-effect waves-light <a waves-effect class="std-btn <a Countdown Minutes</a> <input onclick="stopBreak()">Stop <div class="range-field class="std-left" s12 btn btn" </div> waves-light std-center"> std-left"> <div Break</a> <div waves-effect Break</a> style="width:400px; class="std-btn class="row"> countdown="10" waves-effect type="range" id="otherValue" </div> class="input-field Minutes</a> std-center id="otherSlider" id="countdown" waves-effect waves-effect class="std-right" <a onclick="setCountdown(5);">5 class="std-btn <a onchange="updateSliderText(this.value);" waves-light nowrap;"> <a std-center std-center btn" max="60" std-center std-center class="std-btn id="startBreak" std-center"> btn" class="col onclick="setCountdown(document.getElementById('otherSlider').value);">Other</a> waves-light display:inline; </div> waves-effect /> s12 countdown="15" countdown="20" Timer onclick="setCountdown(15);">15 btn col std-center <p><div