html {
  box-sizing: border-box;
  font-size: 100%;
}

*,
:after,
:before {
  box-sizing: inherit;
}

body {
  background-image: url(./img/abstract.jpg);
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  background-size: cover;
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  text-align: center;
  font-family: "Montserrat", sans-serif;
  max-width: 100%;
  min-height: 100vh;
  height: auto;
  letter-spacing: 0.1em;
}

.logo {
  width: 150px;
  border-radius:50%;
}

h2 {
  color: #024873;
}

.links__item {
  display: block;
  max-width: 550px;
  margin: 0 auto 15px;
  margin-bottom: 5px;
  padding: 15px 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
  color: black;
}

.links__item .links__item--alumni:hover {
  background-color: #fff;
}

.links__item .links__item--upcoming:hover {
  background-color: #fff;
}

.links__item .links__item--promo:hover {
  background-color: #fff;
}

.links__item .links__item--past-event:hover {
  background-color: #fff;
}

.links__item .links__item--featured:hover {
  background-color: #fff;
}

.links__item .links__item--product:hover {
  background-color: #fff;
}

.links__item .links__item--blog:hover {
  background-color: #fff;
}

.links__item .links__item--upcoming {
  border-bottom: 3px solid #ffa093;
  box-shadow: inset 0 -4px 0 #ffa093;
  border-radius: 25px;
  border: 2px solid #ffa093;
  background-color: #ffa093;
}

.links__item .links__item--promo {
  border-bottom: 3px solid #80d6ff;
  box-shadow: inset 0 -4px 0 #80d6ff;
  border-radius: 25px;
  border: 2px solid #80d6ff;
  background-color: #80d6ff;
}

.links__item .links__item--past-event {
  border-bottom: 3px solid #bedde8;
  box-shadow: inset 0 -4px 0 #bedde8;
  border-radius: 25px;
  border: 2px solid #bedde8;
  background-color: #bedde8;
}

.links__item .links__item--featured {
  box-shadow: inset 0 -4px 0 #73e2a7;
  border-radius: 25px;
  border: 2px solid #73e2a7;
  background-color: #73e2a7;
}

.links__item .links__item--product {
  border-bottom: 3px solid #ffc15e;
  box-shadow: inset 0 -4px 0 #ffc15e;
  border-radius: 25px;
  border: 2px solid #ffc15e;
  background-color: #ffc15e;
}

.links__item .links__item--alumni {
  border-bottom: 3px solid #fed766;
  box-shadow: inset 0 -4px 0 #fed766;
  border-radius: 25px;
  border: 2px solid #fed766;
  background-color: #fed766;
}

.links__item .links__item--blog {
  border-bottom: 3px solid #fd8176;
  box-shadow: inset 0 -4px 0 #fd8176;
  border-radius: 25px;
  border: 2px solid #fd8176;
  background-color: #fd8176;
}

.channels {
  display: flex;
  max-width: 400px;
  margin: 0 auto;
}

.channels .channels__item {
  flex: 1;
  margin-right: 5px;
  transition: transform 0.2s;
}

.channels__item:hover {
  transform: scale(1.5);
}


<!-- CSS Accordion code-->
.container section{
	width: 550px;
	margin: 100px;
	margin-bottom:5px;
}	
.container section details summary{
  padding: 15px;
  background: #ffa093;
  border: 1px solid #ffa093;
  background-color: #ffa093;
  list-style: none;
  cursor: pointer;
  display: block;
  max-width: 510px;
  margin: 0 auto 15px;
  margin-bottom: 5px;
  padding: 15px 20px;
  font-size: 0.95rem;
  line-height: 1.5;
  text-decoration: none;
  transition: all 0.2s ease-in-out;
  color: black;
  box-shadow: inset 0 -4px 0 #ffa093;
  border-radius: 25px;
}
.container section details summary:hover{
  background: #fff;
}	
.container section details p{
  font-size: 12px;
  padding: 10px;
  color: #444;
  #background: #e6ffff;
  width: 510px;
  margin: auto auto;
}
.container section details summary::after{
  content:'+';
  position: absolute;
  right:445px;
  font-size:15px;
  color: #000;
  transition: .2s linear;
}	
.container section details[open] summary::after{
  transform: rotate(135deg);
}
.container section details[open] summary{
  background: #fff;
}
		
<!-- CSS Accordion code-->
      .bg-one,
      .bg-one ~ .content span{
      background-color:#80d6ff;
      border-bottom: 3px solid #80d6ff;
	  box-shadow: inset 0 -4px 0 #80d6ff;
      border: 1px solid #80d6ff;  	
      }
	  .bg-one:hover{
	  background-color:#fff;
	  }	 

      .bg-two,
      .bg-two ~ .content span{
      background-color:#ffa093;
      border-bottom: 3px solid #ffa093;
	  box-shadow: inset 0 -4px 0 #ffa093;
      border: 1px solid #ffa093;  	
      }
	  .bg-two:hover{
	  background-color:#fff;
	  }	  
	  
      .bg-three,
      .bg-three ~ .content span{
      background-color:#73e2a7;
	  border-bottom: 3px solid #73e2a7;
	  box-shadow: inset 0 -4px 0 #73e2a7;
      border: 1px solid #73e2a7;  	
      }
	  .bg-three:hover{
	  background-color:#fff;
	  }	  
	  
      .bg-four,
      .bg-four ~ .content span{
      background-color:#DEBA9D;
      border-bottom: 3px solid #DEBA9D;
	  box-shadow: inset 0 -4px 0 #DEBA9D;
      border: 1px solid #DEBA9D;  	
      }
	  .bg-four:hover{
	  background-color:#fff;
	  }	  
	  
      .bg-five,
      .bg-five ~ .content span{
      background-color:#fed766;
	  border-bottom: 3px solid #fed766;
	  box-shadow: inset 0 -4px 0 #fed766;
      border: 1px solid #fed766;  	
      }
	  .bg-five:hover{
	  background-color:#fff;
	  }	  
	  
      .bg-six,
      .bg-six ~ .content span{
      background-color:#BE8ABF;
	  border-bottom: 3px solid #BE8ABF;
	  box-shadow: inset 0 -4px 0 #BE8ABF;
      border: 1px solid #BE8ABF;  	
      }
	  .bg-six:hover{
	  background-color:#fff;
	  }	  
	  
	  .bg-seven,
      .bg-seven ~ .content span{
      background-color:#80d6ff;
	  border-bottom: 3px solid #80d6ff;
	  box-shadow: inset 0 -4px 0 #80d6ff;
      border: 1px solid #80d6ff;  	
      }
	  .bg-seven:hover{
	  background-color:#fff;
	  }	  

.tabs-box{
  #background-color: #3d4a60;
  color:#000;
  max-width:550px;
  margin:40px auto;
  #box-shadow:0 0 10px rgba(0,0,0,.3)
  cursor: pointer;
  font-size: 0.95rem;
  line-height: 1.5;
}
.tabs-box .acord{
 position:relative;
 overflow:hidden;
 margin-bottom: 5px;
  border-radius: 25px;
  margin-bottom: 5px;
  padding: 15px 20px;
}
.tabs-box .acord label{
  position:relative;
  z-index: 1000;
  display:block;
  padding:5px 0;
}
.tabs-box .acord label i{
  display:block;
  position:absolute;
  top:0;
  right:0;
  width:40px;
  text-align: center;
}
.tabs-box .acord label{
    height:auto;
    line-height: 1.5;
	border-radius: 25px;
	cursor: pointer;
	margin: 0 auto;
	padding: 17px 45px;
}
.tabs-box .acord label i,
.tabs-box .acord i.fa-chevron-circle-down{
    height:auto;
    line-height: 1.5;
	border-radius: 25px;
	cursor: pointer;
	margin: 0 auto;
	padding: 17px 5px;
}
.tabs-box .acord i.fa-chevron-circle-down{
  position:absolute;
  z-index: 1111;
  top:20px;
  right:32px;
  width: 40px;
  text-align: center;
  -moz-transition:all .2s linear 0s;
  -webkit-transition:all .2s linear 0s;
  transition:all .2s linear 0s;
}

.tabs-box .acord input{
  display:none;
}

.tabs-box .content{
  position:relative;
  overflow:hidden;
  -moz-transition:height 1s linear 0s;
  -webkit-transition: height 1s linear 0s;
  transition: height 1s linear 0s;
  height:0;
  font-size:11px;
  line-height:22px;
  color:#000;
  text-align:justify;
  padding: 0px 15px;
}

.tabs-box .content span.square{
  display: block;
  position: absolute;
  right: 22px;
  top: -14px;
  width: 20px;
  height: 20px;
  transform: rotate(45deg);
}
.tabs-box input[type="checkbox"]:checked ~ div.content{
  height:auto;
  padding:15px;
}
.tabs-box input[type="checkbox"]:checked ~ i.fa-chevron-circle-down{
transform:rotate(180deg);
transform-origin: center center;
}

/* CSS */
<!-- button 1 -->
.button-1 {
  background-color: #80d6ff;
  border: 1px solid #80d6ff;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-1:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-1 {
    padding: 10px 30px;
  }
}
<!-- button 2 -->
.button-2 {
  background-color: #ffa093;
  border: 1px solid #ffa093;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-2:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-2 {
    padding: 10px 30px;
  }
}
<!-- button 3 -->
.button-3 {
  background-color: #73e2a7;
  border: 1px solid #73e2a7;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-3:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-3 {
    padding: 10px 30px;
  }
}
<!-- button 4 -->
.button-4 {
  background-color: #DEBA9D;
  border: 1px solid #DEBA9D;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-4:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-4 {
    padding: 10px 30px;
  }
}
<!-- button 5 -->
.button-5 {
  background-color: #fed766;
  border: 1px solid #fed766;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-5:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-5 {
    padding: 10px 30px;
  }
}
<!-- button 6 -->
.button-6 {
  background-color: #BE8ABF;
  border: 1px solid #BE8ABF;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-6:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-6 {
    padding: 10px 30px;
  }
}
<!-- button 7 -->
.button-7 {
  background-color: #80d6ff;
  border: 1px solid #80d6ff;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #000;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  #outline: none;
  outline: 0;
  #padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  #user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-7:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-7 {
    padding: 10px 30px;
  }
}

<!-- HTML !-->
<button class="button-37" role="button">Button 37</button>

/* CSS */
.button-37 {
  background-color: #13aa52;
  border: 1px solid #13aa52;
  border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .1) 0 2px 4px 0;
  box-sizing: border-box;
  color: #fff;
  cursor: pointer;
  font-family: "Akzidenz Grotesk BQ Medium", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  font-weight: 400;
  outline: none;
  outline: 0;
  padding: 10px 25px;
  text-align: center;
  transform: translateY(0);
  transition: transform 150ms, box-shadow 150ms;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
}

.button-37:hover {
  box-shadow: rgba(0, 0, 0, .15) 0 3px 9px 0;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .button-37 {
    padding: 10px 30px;
  }
}