* {
    margin: 0;
    padding: 0;
}
ul, table {
    list-style: none;
}
li {
    display: inline-block;
}
input {
    width: 100px;
}
button {
    width: 100px;
	  margin: 0 50px;
}
.container {
    padding: 50px 0 0 0;
}
.geometry {
    border: 1px solid;
    padding: 10px;
    margin: 50px 0 0 0;
    border-radius: 10px;
    text-align: center;
}
.arrow {
    margin: 25px 0;
}
.matrix {
    border-left: 1px solid;
    border-right: 1px solid;
    padding: 25px;
    border-radius: 50px;
    text-align: center;
}
.half {
    width: 50%;
}
.one_third {
    width: 33.3333%;
}

.navbar {
    padding: 0 10%;
}