style.css

h1 {
  width: 100%;
  margin-left: 20px;
  font-weight: 800;
  font-size: 100px;
  opacity: .8;
}

h2 {
  margin-top: 0px
}

body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
}

p {
  width: 100%;
  margin-left: 20px;
  font-size: 70px;
  opacity: .6;
  font-weight: 500;
  line-height: 1.6;
}

xmp {
  width: 100%;
  background-color: aliceblue;
  margin: 20px;
  color: dimgray;
}

.hero {
  width: 100%;
}

.container {
  width: 100%;
  margin: 0 auto;
}

.container__body {
  width: 60vw;
  min-width: 300px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
}

.block {
  min-width: 280px;
  position: relative;
  /* width: calc(30vw - 40px); */
  flex: 1;
  min-height: 200px;
  height: 14vw;
  /* background-color: lightgrey; */
  outline: 1px solid lightgrey;
  background:
    linear-gradient(to top right, transparent 49.9%, lightgrey 49.9%,lightgrey 50.1%, transparent 50.1%),
    linear-gradient(to bottom right,transparent 49.9%, lightgrey 49.9%,lightgrey 50.1%, transparent 50.1%);
  margin: 20px;
}


.block img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/******NETWORK****/

.network {
  position: fixed;
  right: 20px;
  bottom: 20px;
}

/******CONTROLS*****/

.controls {
  width: 200px;
  color: var(--grey);
  position: fixed;
  bottom: 0;
  padding: 30px;
  margin: 30px;
  border-radius: 8px;
  background-color: #F6F7FC;
  font-weight: 600;
}
.controls__duration {
  font-weight: 400;
  color: var(--grey);
}

.controls label {
  font-weight: 400;
  color: var(--grey);
  opacity: .8;
  margin-left: 10px;
}

input[type=radio] {
  margin-bottom: 14px;
}

input[type=range] {
  -webkit-appearance: none; /* Hides the slider so that custom slider can be made */
  width: 100%; /* Specific width is required for Firefox. */
  background: transparent; /* Otherwise white in Chrome */
  margin-bottom: 40px
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
}

input[type=range]:focus {
  outline: none; /* Removes the blue border. You should probably do some kind of focus styling for accessibility reasons though. */
}

input[type=range]::-ms-track {
  width: 100%;
  cursor: pointer;

  /* Hides the slider so custom styles can be added */
  background: transparent; 
  border-color: transparent;
  color: transparent;
}

/* Special styling for WebKit/Blink */
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 21px;
  width: 21px;
  border-radius: 100%;
  background: var(--grey);
  cursor: pointer;
  margin-top: -7px; /* You need to specify a margin in Chrome, but in Firefox and IE it is automatic */
}

/* All the same stuff for Firefox */
input[type=range]::-moz-range-thumb {
  height: 21px;
  width: 21px;
  border-radius: 100%;
  background: var(--grey);
  cursor: pointer;
}

/* All the same stuff for IE */
input[type=range]::-ms-thumb {
  height: 21px;
  width: 21px;
  border-radius: 100%;
  background: var(--grey);
  cursor: pointer;
}

input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 8.4px;
  cursor: pointer;
  background: var(--blue);
  border-radius: 1.3px;
}

input[type=range]:focus::-webkit-slider-runnable-track {
  background: var(--blue);
}

input[type=range]::-moz-range-track {
  width: 100%;
  height: 8.4px;
  cursor: pointer;
  background: var(--blue);
  border-radius: 1.3px;
}

input[type=range]::-ms-track {
  width: 100%;
  height: 8.4px;
  cursor: pointer;
  background: transparent;
  border-color: transparent;
  border-width: 16px 0;
  color: transparent;
}
input[type=range]::-ms-fill-lower {
  background: var(--blue);
  border-radius: 2.6px;
}
input[type=range]:focus::-ms-fill-lower {
  background: var(--blue);
}
input[type=range]::-ms-fill-upper {
  background: var(--blue);
  border-radius: 2.6px;
}
input[type=range]:focus::-ms-fill-upper {
  background: var(--blue);
}

/*****Variables****/

:root{
  --blue: #4C7EFF;
  --grey: #3D4457;
}