.menu
  ul.list
    li Save
    li Export to GitHub
    li Delete
    li Share

View Compiled
$btn-size: 56px;

%center {
  position: absolute;
  top: 50%; 
  left: 50%;
  transform: translate(-50%, -50%);
}

%icons {
  font-family: 'Material Icons' !important;
  font-feature-settings: 'liga';
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, :before, :after {
  box-sizing: border-box;
  transition: .3s;
}

body {
  background: linear-gradient(135deg, #F93239 , #DD2476);
  height:100vh;
  margin: 0;
  font-family: Roboto;
}

.menu {
  @extend %center;
  background: #474747;
  height: $btn-size;
  width: $btn-size;
  border-radius: 5px;
  color: #E6E6E6;
  font-size: 2em;
  cursor: pointer;
  &:before {
    @extend %center;
    @extend %icons;
    content: '\E5D2';
    font-size: inherit;
  }
}

ul {
  // display: inline-block;
  background: inherit;
  padding: .5em 0;
  margin: 0;
  margin-top: 1em;
  border-radius: 5px;
  box-shadow: 0 2px 8px rgba(#000, .2);
  position: absolute;
  top: 100%;
  left: 0;
  color: inherit;
  font: 400 18px Roboto;
  white-space: nowrap;
  cursor: default;
  &.hidden {
    margin-top: .7em;
    visibility: hidden;
    opacity: 0;
  }
  &:before { 
    content: '';
    width: .75em;
    height: .75em;
    background: inherit;
    position: absolute;
    top: -.375em;
    left: calc(#{$btn-size} / 2 - .375em);
    transform: rotate(45deg);
  }
}

li {
  list-style: none;
  padding: .5em;
  padding-left: 2.5em;
  margin: 0;
  position: relative;
  cursor: pointer;
  &:before {
    @extend %icons;
    position: absolute;
    top: calc(5% + 8px);
    left: 8px;
  }
  &:nth-child(1):before {
    content: '\E161';
  }
  &:nth-child(2):before {
    content: '\E879';
  }
  &:nth-child(3):before {
    content: '\E92B';
  }
  &:nth-child(4):before {
    content: '\E80D';
  }
  &:hover {
    background: rgba(#FFF, .08);
  }
}
View Compiled
$('.menu').on('click', function () {
  $('.list').toggleClass('hidden');
});

External CSS

  1. https://fonts.googleapis.com/icon?family=Material+Icons

External JavaScript

  1. //cdnjs.cloudflare.com/ajax/libs/jquery/2.2.2/jquery.min.js