html {
    font-family: Arial, Helvetica, sans-serif;
    display: inline-block;
    text-align: center;
}
h1 {
    font-size: 1.8rem;
    color: rgb(255, 255, 255);
}
h2 {
    font-size: 1.8rem;
    color: rgb(0, 0, 0);
}
.topnav {
    overflow: hidden;
    background-color: #0A1128;
}
body {
    margin: 0;
}
.content {
    padding: 50px;
}
.card-grid {
    max-width: 1500px;
    margin: 0 auto;
    margin-bottom: 30px;
    display: grid;
    grid-gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.card {
    background-color: white;
    box-shadow: 2px 2px 12px 1px rgba(140,140,140,.5);
}
button {
    color: white;
    padding: 14px 20px;
    margin: 8px 0;
    border: none;
    cursor: pointer;
    border-radius: 4px;
}

.onButton{
    background-color: #1b8a94;
}

.offButton{
    background-color: #5f6c6d;
}

.connectButton{
    background-color: #24af37;
}

.disconnectButton{
    background-color: #d13a30;
}

.gray-label { 
    color: #bebebe; 
    font-size: 1rem; 
}

.reading { 
    font-size: 1.8rem;
}

.sel{
    display: flex;
    flex-direction: column;
    width: 30%;
    height: 30px;
}
.selContainer{
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    margin-bottom: 40px;
}

.slid
{
    padding-top: 5px;
padding-bottom: 5px;
}



.sliderContainer
{
    display: flex;
    flex-direction: column;

}
.slider {
    width: 90%;
}